What do you guys Think?

Me and girlfriend broke up a couple weeks ago but stayed as friends, we only broke up because she couldn't handle a relationship that well , she doesn't know how to set boundaries and limits for her self and also doesn't have self respect.But we talked and agreed to stay as friends , but I still like her after all the things that she's done, also she was the one who liked me at first, we started as friend and became close leading to the point that she eventually fell for me and I fell for her back. I thought after the break up we will be kinda normal like still flirting and teasing, but not really, and I feel like I'm the only one who's chasing her now and stuff like I'm still the one who's stuck waiting and loving her. I know I should move on but I get mixed signals from her too, like if I start a conversation she'll show interest and actually make a conversation with me and make up topics and she shows that she still actually cares about me. But the only down side is if I won't text her or make the first move to talk she won't talk to me either, which confuses me so much. But recently I noticed that maybe she likes someone else now because of her note on ig and repost on TikTok, I don't want to jump into conclusions and stuff but yeah, mostly I just feel lied and betrayed cus she was the one telling me that's she was hard to love and shi but even after the break up I still love her and constantly think of her and still caring, and like considering she fell first, and not even a month of our break up she alr found someone's to like. That's just lwk heart breaking and I felt lied and betrayed, but idk what do you guys think?