Angry Ex.. why?

For context, my (ex) partner (18f) broke up with me (18f) around the middle of January and it broke me. During the breakup, she told me it was okay to cry, we hugged, I begged, she left, I cried. The usual for a breakup, she broke up with me because she said she didn't think we were compatible, alongside me having constant personal drama, despite dating for 5 and a half months, and that I needed to emotionally mature. We had some issues where we would let problems sit until someone got hurt, and that didn't help. She was calm and collected and told me she hoped I would find someone better than her in the future and that she didn't love me romantically anymore.

The week proceeding the breakup, me and my ex would constantly look at one another during our classes, she'd look upset and we'd usually immediately stop looking when we noticed each other, she didn't look good and looked exhausted. Things a week after the breakup took a sharp turn..

A week later, she posts in my discord server (while pinging @everyone) a video of my (ex) friend who was... Honestly treating her terribly and was saying some pretty bad things to her because of the breakup. A video reading it out, and then the drama started between us.

We fought, and she said some of the most hurtful things I think I couldve ever heard from her. For starters, she said we could NEVER be friends because I'd just want to be with her, and she admitted to intentionally trying to make me hate her so that I'd move on from her. I kept telling her I love her She mocked me, hurt me, and said really nasty things, including bringing up old relationship issues in order to try and create distance.. she said the breakup was the happiest she has ever been in a long time. I ended up in the hospital, she told me to stay safe, and that was that. During the fight, she told me if I couldn't take it to block her and remove me from her server, and told me I shouldn't let people treat me that way. I told her (out of anger and pain) that I'd never be with her if that's how she treated me, and said yeah sure, just friends, but then she proceeded to try to tell me over and over that we would never be friends, that she never wanted to go back to how things were. She said she needed to "drill it into my head for me to understand". She said she needed to move on with her life.

She's never, ever acted like that to me before. Prior to the fight she had taken two shots of everclear, and said halfway through she was sober again.

She hurt not just me during the fight, she mocked one of my family members, and had one of our mutual friends end up blocking her, she apologized afterwards to her but openly tried to hurt me. Another issue is.. the day of the breakup, the one she said was happiest for her.. I don't believe. That night, I heard from a friend that she'd taken over 12 shots of everclear, and she's had a pretty bad alcohol problem ever since her other ex (poly) left her at the start of January. She even admitted afterwards that the situation could've been handled better and at a different time. Now everyone in my social circle is upset with her for how she acted, she hurt or upset almost everyone in my server during that fight.

Fast forward to our next class, we kept looking at one another. Nobody had blocked one another, nobody had said anything besides her telling me to stay safe. I tried to give her a smile, and then one of our mutual friends proceeded to tell me she didn't want to be friends anymore, and that was that, just out of nowhere. I left class early, and later that night my ex had blocked me as well. Our relationship wasn't the healthiest, we had problems but we were slowly working through them. Since the breakup I've had therapy and have given up on a lot of things. The next class we had, and since then, she hasn't dared to look at me. She constantly tries to ignore looking at me, interaction, even going as far as to physically walk around me in a wide circle to avoid me.

Problem is... She's left me added everywhere other than discord, phone and steam. I'm still added on snap, insta, wherever else. And it's driving me crazy. She's still in my personal friends & family discord server where the drama went down, she still has matching profile pictures, she's.. confusing. It's been almost a month now and only yesterday did she remove me on steam.

From what I can see, she's had trouble arriving to our classes since then, had trouble arriving to our online classes for about a week, has had trouble sleeping (from what I can see), and has had possibly a bunch(?) of rebound stuff(I'm not entirely sure, but she brings people home on the train now), sets her discord status to mirror mine in a way (we both used to just set it to online, I started to set mine to always idle and she followed suite) and I'm honestly so confused, she tried to hurt me, but I honestly love her so much that I would be willing work with her and reconcile. I really regret our fight and I've been working on myself to make myself happier.

Any advice, thoughts or comments would be appreciated. I'm so lost.