This could have been answered with a simple yes or not but I ranted I'm sorry. ;-;
I didn't used to at all. Not because I liked Stelena (I'm never here for the main love triangle) but just because of the fact I was a Stefan stan (among things such as being a Jeremy and Matt fan so I hated his treatment of them a lot). Being a Defan shipper gave me the opportunity to try and see both sides of both brothers and there were even times when I was sat here like 'Stefan, no. You need to treat your brother better' or 'wow, Damon's clearly the better brother in this situation - Stefan, stop being an asshole'. But there are still those things against him that keep building up to the point that I'm ready to explode.
You'll see me cry and raging on the dash; that isn't even half of it. But I try to tone it down or laugh it off or hell even apologize for it for the sake of the other Defan shippers. But if Damon seriously puts Elena above Stefan in the finale then I'm done with it. That's how their shitty complicated relationship started; Damon putting his love for Katherine over his love for Stefan. So people can go ahead and preach that he's developed so much and blah blah blah but if he puts a doppelganger above Stefan one more time then he hasn't developed at all. He's come full circle. And I'm not here for it at all.
I love Stefan too much to ship him with someone like that. Someone who kills his best friend. Someone who acts like they care that his brother's feeling like shit over a break up and then turns around and says he doesn't care and then sleeps with said brother's ex-girlfriend. Someone who, after having his life saved by his brother, goes ahead and starts kissing that brother's girlfriend (yes, whilst they're still dating).
The hate I see Stefan getting regarded Damon also makes me hate Damon. For example; people complaining that Stefan doesn't want Damon happy and will only ruin his happiness. Yes, because Damon has clearly filled his life with such happiness since returning to Mystic Falls. Y'know, between killing his best friend and making moves on his girlfriend. What a joyful experience you've got there, Stef. I'm practically envious. They take his quotes out of context just to boost up Damon and his other ships and I'm fucking sick of it. Wanna know why Stefan said that Damon had no humanity and was just a monster who needed to be stopped. BECAUSE THAT'S EXACTLY HOW HE WAS ACTING IN SEASON ONE WHEN HE SAID IT. DAMON. KILLED. STEFAN'S. BEST. FRIEND. HE WASN'T EXACTLY GONNA THROW HIM A PARTY TO CELEBRATE HIS LOVING BIG BROTHER RETURNING HOME TO DO SO. If you're going to hate him do it based on something he actually did; not over the fact that you're a freaking idiot.
And don't even get me started on this season. Between the fandom and Damon himself there are just too many fuck ups to list. I mean, wow, at least I can admit when Stefan does something stupid. I'm tired of them attacking him whilst putting their precious manchild up on a pedestal. Don't. Just don't. I'm not here for it. I don't care about his manpain. I care about what makes Stefan happy. I used to think that Damon made Stefan happy but now I'm starting to realize how delusional I really was. Stefan can't live without Damon and he needs his big brother, I'll acknowledge that much, but that doesn't mean I have to like it.
And God, the worst part? The worst part is that I hope I'm wrong. I so badly hope that he won't say/do what I think he's gonna do. I hope that someone will come to me saying 'KAYLEE YOU WERE WRONG' and I will take back everything I just said and admit that I was so so wrong. But I have this feeling that I won't be. The writers have shown time and time again that they'll favour the love part of the triangle over the bromance side. I don't feel like getting my hopes up just to see them completely shat on.
I hope Stefan becomes human and I hope he loses all his memories so Damon - the man who he'll see as his human best friend, brother and companion - will have to explain every single thing they've been through. And with this new perspective I want Stefan to just turn around, walk out the door and start a new human life as far away from Damon as possible. I'm not here for it anymore. I ship Stefan with happiness above all else and I'm seeing very little of Stefan being happy in Damon's presence.
I'm sorry, I ranted. This rant is so bias and hateful that I'll probably feel really ashamed tomorrow and delete it and cry over how much I hate myself for being such a hypocritical little shit but this has been building up for months and I needed to get it out. For now I'll just be over here shipping Steroline since it's the only relationship on this show that has yet to be completely fucked over by the writers.
TL; DR: Damon and I have a very complicated relationship. I am Lexi. Lexi is me. I tolerate him for Stefan's sake. I want to care but the fandom makes it difficult and tbqh they probably feel the same way about Stefan. One of the many perks of being a part of the TVD fandom.
