Need some advice.. :/

So long story short, I was talking and fucking this guy for 4 years on and off. We both had feelings for eachother but are in different parts of our lives and never made it official. I hung out and fucked up for 7 months and randomly he stopped talking to me. I would tell my little sister everything. Turns out she was fucking him too ans he left me for him. I have not talked to her in 6 months and they still talk and fuck. Disgusting.

Now I have all this trauma and trust issues with guys or everyone honestly. And this guy has been hitting me up to “come chill” and I know he just wants to duck me nothing else. And I told him I am done letting guys use me. And he still continues to hit me up and ask to hang out. What do I do. Do I just do it and hang out w him knowing he is going to just use me.. or do I just keep doing me and wait for someone to actually like me for me and not my ass. Or do I just give him a chance and maybe he doesn’t just want me for sex since he could get any bitch but keeps trying for me?

I just need help my friends won’t help me and I need advice