Making it work after infidelity?

I guess im here looking for ladies that have gone through a similar situation.. Need a little bit of advice or insight... So here it goes... Long story short about 3yrs ago me and my kids father hit a really bad place in our relationship found out he was on drugs and cheating on me. I did the most stupidest thing and stood with him regardless of it all thinking I could fix what's going on within our lives. I put up with all the verbal abuse and obviously he didn't stop sexting other women.. He left out of state for work and I ended up also cheating on him (I know its never ok to cheat, regardless) I never slept with the guy. My kids father found out. I ended up having to kick my kids dad out of.the house because he was so verbally abusive towards me when he found out. He was basically living in his truck for a few months after that. He got clean and was working on himself when his truck was stolen... He didnt have anywhwere to go so I told him he could crash until he found a place ( he's still.here).. During this time things have been pretty good. I guess.. He expressed pretty quickly that he wants to be with me again but I don't think I have the energy to repair the trust or bond that was broken... Ive just been going with the flow to see how things go...He just got a car again and I feel all of these insecurities rushing to me and I absolutely hate it! And im.know he doesnt trust me either..I know they say cheaters are always cheaters and I'm pretty sure if hes not doing it now its only a matter of time, right? Idk I guess im just dealing with alot (not all mentioned here) and need some advice or insight on how to process all of these feelings. Thanks in advance ladies.