I'm now blocked and I don't know why.

For context, I used to be in a friend group of 3. Two of us had issues with the other one bc she would do stuff like taking whatever mistake we made and blow it out of proportion (imo at least) and refused to talk to us until we apologized (and even after refused to talk about the issue), if she did something it was our fault or we were overreacting, talking about how bad of people we were, ect. And it was just draining, so I started to drift away from the relationship. I was tired of getting home and crying myself to sleep, so I decided the next time something happened I would drop it and not apologize. It worked. The other person stayed friends with her for a while longer until they had a fight. I gave my friend the best advice I could, but she ended up blocking the girl. Recently the girl reached out to me hoping to talk to my friend. I tried to help her as she at least had the decency to say that my friend didnt have to if she was uncomfortable ect. I went ahead and asked my friend telling her that I was sorry if this is hurtful but I wanted her to know what the other girl had requested. From that point forward, I have no idea what happened.

Today I walked past the girl I cut ties with and decided I should compliment her dress be cordial. (It was honestly pretty cute.) During the day I left for a sporting event. When I returned home and opened op Snapchat, I saw she had deleted 2 messages and the third said to never talk to her again. I am confused and I bit upset rn, but I figure if she decided to block me instead of discussing whatever issue there was, them it's not worth it to chase whatever relationship there was. I just needed to type it out and help myself get over this crud. I want to reach out to her so badly, but I can't. It breaks me every time even though I know that it could never be healthy. Thank you to anyone who read this.