Let’s talk about this.
Why both will and el are so connected is because they both have the same storyline. They both have the same end purpose: acceptance.
!!warning: long post ahead!!
Will’s storyline: acceptance of love.
Unlike what most milevens believe, the duffers aren’t planning to end Will’s story with him accepting that he is gay because he HAS already accepted it. He accepted the fact that he was gay and in love with Mike, hence, the painting.
The painting, from the start, was a way of Will confessing his feelings (etc. you’re the heart) but it was never going to be said out loud. He had just planned to give it to Mike during the airport scene and it was supposed to be over.
But instead, he used it as a way to build up Mike’s confidence in himself and also lead up to say ‘I love you’ to El. He used El as a shadow over his own feelings to help Mike.
Will accepts that he likes men and is attracted to Mike. What he doesn’t accept is that he is going to fall in love. We see this in season 3 when he’s talking with Joyce.
This was a scene directly after a canon couple’s scene. Both Jonathan and Nancy are in fact in love with each other and when Joyce says the words ‘you won’t think it’s gross when you fall in love’ it indicates she meant when Will is in a relationship, not when Will is some one-sided love triangle.
So when Will says he isn’t going to fall in love, he is saying this because he knows he’s feelings in a relationship are not going to be reciprocated. He isn’t saying it because he hasn’t fallen in love with someone, he’s saying that it’s impossible for those feelings to be mutual.
Also to remind you, there was no need to put this scene in the first place if it was not hinting at something. It could’ve just been Jonathan and Nancy getting away and Joyce wiping lipstick off his face, indicating that she knew Nance was there anyway.
Throughout season 3, we can clearly notice that Will is struggling with something not related to the mind flayer. He’s struggling with his childhood, his friends and change. And the most important change is his feelings towards a certain friend.
Because of these feelings we get the rain scene. This was Will struggling to accept that he was different (gay) and in love with Mike. This was season 3’s struggle. But in season 4, through the painting, we see it’s been resolved.
He has accepted this but knows he isn’t going to be in love. He knows he’s feelings aren’t going to be reciprocated. So he does the next best thing other than confessing, and help mileven build up their already broken relationship.
Even more so, the scene with Jonathan and Will in the pizza place was acceptance enough for Will to come out. Both Will and Jonathan knew what they were talking about, the subtexts were very obvious. This was the acceptance of Will being gay and in love with Mike.
Now anybody with a right mind would see that this is clearly building up to something more important. A gay boy who thinks he’s feelings are not going to be accepted using he’s only way of confessing as a tool for a problematic ‘straight’ couple.
We must give the duffers credit as we know they aren’t just going to ignore Will’s feelings next season or slap him with some background character as a way of resolving this. There has to be more.
El's storyline: acceptance of independence.
Throughout her whole life, El has always been told what to do. Whether it has been for positive or negative means, she's never made a decision in her entire life leading up to season 2.
Let's be clear that before this girl knew the word 'friend', 'family' and 'love' meant, she had already gotten into a relationship. That before she ever knew what she liked and disliked, she was already in a relationship with the supposed boy of her dreams.
Anyways, independence is something so rooted in El’s storyline. It’s something repeated throughout the seasons. We see it in season 2 when she goes out on her own to find her mother and sister. It is important to note that Mike was not a part of this journey. Mike was not the sole focus or someone El thought she needed at that time.
Even in season 3, we are given the fact that El has never made a decision for herself. The strongest decision we ever see that season was her breaking up with Mike and even that has been disregarded by milevens, saying that Max influenced her or that she ‘didn’t know what she was doing’ or that ‘she’s just a teenager’.
Let’s be clear that anybody in a relationship is given the option to break up and leave the relationship if they want to. Max did not ‘influence’ her, she merely gave her the option. The option that is rightfully hers. By saying that it wasn’t really her decision or that she didn’t know what she was thinking, it’s like saying she doesn’t have an option.
She has the right to leave a relationship if she wants to.
The words ‘not hopper, not mike, you’ is so important to a character like El. A character that has been locked up and dependent throughout her life, finally given a choice to decide for herself is powerful.
Season 3 is important in El’s arc to independence because unlike what Milevens say, she doesn’t require Mike to be there for her to feel complete. The reason that El went to find Mike in season 2 was because they need each other is debunked in season 3. It shows that even when Mike is within her reach, she doesn’t go find him.
Now in season 4, we see a very big shift in her attitude from the previous seasons. She’s pretending to have a normal life when she clearly isn’t. She’s lying and hiding behind a fake persona to make her seem happy. She is still grieving from hopper while trying to put everything behind her and live a ‘normal’ life.
She, like many milevens, is building a reality where her and Mike are the supposed perfect couple. A reality where they are truly in love. She lies to Mike and herself throughout the rink-o-mania scene. And this all unfortunately breaks when Angela (that bitch) comes into the picture.
She throws El’s persona into the fire and absolutely humiliates her in front of the one person she didn’t want to be humiliated in front of. And this is where we see their relationship break (even more).
We see the first crack when El says that Mike doesn’t understand how she feels. To be honest, she’s right. Mike didn’t know how it felt to move to a whole new side of the country without her father and to be subjected to brutal bullying. But disregarding his feelings towards bullying is also something she does.
Now the curtains are open and everything is shown. We then get a scene of El basically pleading Mike to tell her he loves her. But instead of admitting it, Mike gaslights her and tells her their problems are caused by other people.
Mike says he says he loves her but if this was really the most important couple in the show I’m sure the duffers would’ve included the supposed scenes where Mike and El say they love each other TO EACH OTHER. And when she brings out proof, he calls her ridiculous.
Even in the van scene, he says that he’s scared that El won’t need him anymore. He wants to feel like a hero to her, someone that can protect her when in reality, she is way past it. She wants him to love her but he wants her to need him. He wants her to be dependent on him.
Through the beginning of season 4, we see her define herself in the way Mike sees her. While giving him a false narrative of her life, she pretends she lives in them. Plastering a fake smile just so that Mike would think she’s enjoying herself in Lenora and lying about parties to make herself seem cool.
You can see how defeated she looks when she realises that Mike might not love her at all.
She, like so many more milevens, want Mike to be the perfect lover, the person who is with her through all her problems and a shoulder to cry on. But he isn’t that person and she knows it.
But after she leaves Mike, we can truly see what her goals are. There isn’t a scene throughout her journey where she thinks of Mike and you can see her gain more confidence in herself, once again proving that she doesn’t need him to feel complete.
She does better without him.
Her arc was never about romance. Her arc was about finding who she truly is. It was about her finding a place in this world where she doesn’t have to be the hero or villain in the story. It was about her growing alongside the people she loves and the family she built.
We see that she realises that she is her own superhero, that she can solve her own problems and that she doesn’t need a shoulder to cry on. She can take on a challenge headfirst without letting anyone define who she is.
She doesn’t need Mike telling her that he loves her to realise that she is loved or that she can live a normal and happy life just like how she doesn’t need to forgive brenner to know that she is a good person. She is her own person.
And before anybody comes at me, yes. A woman can be in a relationship and still be independent. But once it come to a point of lying about and to yourself and defining who you are through another person’s feelings, it is not healthy.
She has taken on challenges before Mike, during Mike and will continue to do so after Mike (and all this happened without Mike). She doesn’t need him.
Both Will and El need support and love through their journey. It only comes down to what type of love they need that’s important. El does not need romantic love to thrive while that’s the only love Will is lacking.
Anyways we also clearly see that in the end El is on her own journey and that Mike and Will are a team alongside all the other endgame couples.
So byler endgame and El independent arc era.
(My writing is a bit sloppy here and there so if there are any questions regarding it pls ask. Also again, sorry for long post)