Man do I feel crushed. Need some sense talked into me. feelin like a cuck

Dated this girl for 4-5 months (red flag city of traits) last year. We broke up because it "wasn't working for her right now" then I find out she went back to her abusive ex who she had a restraining order on because he hit her. She lived an hour away. Sucked but I moved on. I was very close with her and it hurt like hell. (deleted her off social media) She reached out 4 months later on my birthday with a simple happy birthday text, I responded with thanks.

That was all until late June of this year. She messaged me "hey I know this is weird but did you want to grab a drink sometime" I probably should of avoided this text but I told her I had free time that coming weekend, we linked back up and hooked up. It was like she never left honestly. Didn't talk about what happened in the last year or so with relationships just casual fun. We actually didn't hook up until the next morning when we both got up so it wasn't even drunk sex. She hung out for a couple hours and we parted ways. I learned she moved back in with her parents because she was trying to save money and didn't want to pay rent anymore (she's 26).

I re added her on snapchat (bad move) and here's where things went to shit. We would talk maybe once a week I'd ask her if she wanted to get together once or twice and she always had plans. That's fine. I realized I was posting stuff to my story just to see if she would check it and living my life through her again. I was never needy, or begging with her but I figured if she was willing to drive an hour on a random Friday after not talking with me for almost a year she could make time to hang out if she was really interested. She would mostly comment on my stories about my daughter, how she's so cute etc and send me a random picture once in awhile but nothing sexual ever.

I did notice she was on a boat with someone and there was a heart next to his picture. So maybe she has someone else and cheated on him with me which makes me feel like shit honestly. After giving it all this thought I deleted her this morning from my snapchat and I know she is going to ask me why via text. Part of the issue is I really care for her still (she has some mental health issues) and I've seen other girls in between but nothing has made me feel like she does.

I had to do this for me, and it hurts leaving someone in the rear view mirror but I don't feel like she deserves a window into my life if she doesn't want to be a part of it in a romantic sense.

Is this wrong? Am I petty? Did I shut the gate forever? I don't know. Just hurts I let her back in.