Has anyone ever found it hard to leave a cheater/liar alone?

We’ve had issues w him hanging out w his baby mother. Her making post about him making it sound like their together. Him going MIA which makes my mind wonder if he’s w her or maybe someone else. He gets snaps all the time. I don’t trust him(I know your going to say why be with him, hell I dont know). I Found antibiotics in his drawer, don’t know what they were for but still. I just can’t trust him. Strangely we get alone when I forget for the smallest moment of things he’s done. I never stepped out. I told him I was done but he wants up to “talk” like always. We do this EVERY month it feels like.

Then on the other hand I have another guy who is trying to get to know me but I keep trying to find the negative in him. Like .. he goes to sleep early and I like to stay up late😂. He seems very sweet and transparent(as they all do at the beginning)

I’m like I can’t be this stupid to be stuck on a cheater.