He cheats again!

My bf and I both 30, live together 5 years. We have a toodler son together.

He has cheated on me before, I found out all about it on his phone. There was no denying. We obviously broke up but he never stopped trying to get me back. I think everybody knows how it goes with the apologise and doing great deeds and catering to everything I say basically being on my good side. And us having a small baby at the time, we talked about getting back together and set deeper boundaries and what we expect in the relationship to restore some trust.

It worked for a while but now his behaviour triggers me because it is the exact same behaviour he exhibited around the time he was cheating. He’s staying out late, phone glued to him. He goes out and I have to call and text to know where he is. And another important factor was my PH balance changed after we had sex which only happens when he sleeps with someone else (as I’ve found out in the past). That was 2 months ago. Right now however, he’s not having sex with me at all. We of course have to have sex when my son is not here or asleep so I know it isn’t that frequent but this past week my son slept over at my mom’s house. But all this time he made no attempt or accept my advances. He just.. slept.

I don’t have any proof of him cheating and I don’t need it because I know enough, I’ve experienced it with him, all his mannerism and my gut is telling me he has cheated. I feel so defeated because I am so embarrassed to move out again over the same issue. My son will definitely be affected. I just hate this sh!t so much.

Also, he just replied a dry no when I asked him if he’s screwing someone else. No other explaination nothing. Not even trying to difuse the situation.

I don’t even want to get into it with him. I know he’s going to blame me and tell me he’s not doing anything. But I don’t feel respected at all. I don’t want to keep doing this to myself. But my son is a huge concern. I don’t know if many people get this, but I don’t want my son growing up without both his parents. So I’m writing for some advice.

Do I just stick around for my son’s sake. Or do I leave even though I can’t throw proof in his face?