3 (other) reasons why Diego's & Lila's relationship is probably doomed
So many people have already established that a relationship between these two might not be the greatest idea after the things she did to him this season, so I'm not getting into that, instead I'm going to focus on different things that strike me as difficult.
1. Unstoppable force + unstoppable force
Many people say that Diego and Lila fit together so well because they both have this reckless and borderline crazy way of doing things, but I don't think that's a particularly good thing. They're both head-strong and stubborn as shit so I imagine that, if they disagree on something, it'd be nasty.
Bare with me as I compare it to Diego and Eudora aka unstoppable force + immovable object. Eudora, while also head-strong, is more of a calm and collected individual that evens out with Diego's wild, over-the-top attitude. Yes, they did break up because they had their differences about how to go about some things because Eudora doesn't share Diego's recklessness, which wouldn't apply to Lila, but oh Diego and Lila would absolutely disagree on other things and because they're both this unstoppable force, it wouldn't be pretty.
2. minus × minus doesn't always equal plus
What I mean by that is that they both have issues. A lot of them. And, think what you will, but you can't go and attempt to fix someone else (aka your partner) if you haven't fixed yourself. If they both lean onto each other for support, they're going to crumble eventually. Sure, they may find a sort of solace within each other because they understand each other in their abusive upbringing, but that doesn't make for a great relationship.
3. Lila does not need a relationship right now
This is an addition to my last point. See, Lila just realized how she had been abused and manipulated throughout her childhood. She needs to work through this first.
Diego realized this all the way back in his late teenage years probably, and while it's going to stick with him forever, he's had all these years to process what happened and try to move on. He's had those idk 12-14 years or something to free himself from the abuse and build a life outside of it. He's learnt to live his own life and he's also learnt that this abusive and manipulative bullshit isn't right and tries to be better. He's found "friends" and he even had a relationship before that generally seemed to have been pretty good.
Lila is nowehere near any of that yet. Up until now she lived a lie believing the Handler loved her and only wanted the best for her. Lila doesn't even know what a healthy relationship is like, hence why she continues to mistreat Diego throughout season 2. She just doesn't know any better and thinks that's how you do things. Someone like her needs time to process this and learn how to engage in a life away from her abuser and how to build healthy relationships. If you just throw her into a relationship now, it's not going to go well. Give her a bit of time and things will look different. Give her a therapist instead of a relationship.