We’re toxic. Did he cheat?

My boyfriend and I have been in an up and down CRAZY relationship for the last 4 years. It was toxic for sure and I’m just now finally walking away.

In May he kicked me out of our house. I moved out and got my own place and we didn’t talk for a month or so.

During that time I hooked up with an old fling.

My ex and I got back together in June or tried working on things again.

About 2 weeks ago, he starts acting erratic saying I have him an STD and he has odd stuff coming out of his penis. I freaked out and went and got checked and did test positive for Chlamydia (however you spell it).

Could I have had it the whole time since May or did he possibly do something too? He also took me into a urgent care making an embarrassment out of me saying real loud, “she needs to get checked for an STD”

He also suffers from extreme PTSD. When I left the second time, it’s because he was physical and had me pinned to the ground with his hands around my throat. He took my phone where I couldn’t call 911 and I had to run to a field using my daughters phone to call.

Last night he laid on my stomach talking about survivors guilt and made me promise to never leave him. This morning, he comes home from taking our girls to school and even bringing me breakfast to asking when he’s going to see the report and I’m a whore and we’re over.

I will just take all the advice I can. This is toxic and twisted and I’m losing my own mind trying to make sense of the situation.