My bf stop speaking to me after we had sex

While having sex he did cum in me. He asked me if I was on Bc and I said no. I feel like he’s upset I didn’t tell him I’m on Bc but he usually disappears out of nowhere anyways. This isn’t the first time he’s finished in me but this time he asked. He’s literally been ignoring my texts and calls since Thursday which makes me feel like he’s with someone “specifically married because of clues I found”. tbh I’m hurt Ik I should forget about him but how can he just leave me hanging. If he wants nothing to do with me why don’t he just block my number? Then if I don’t text him all week he asks if I forgot about him and tell me he misses me. I’m just really hurt and I want answers that he won’t give.

This what our convo looks like sometimes when he goes and come back. I’ve use to think he’s at work (construction) so he’s busy and go home to sleep but really he never picks up his phone at night only if he’s working:

Update: so it’s a little over a week now still haven’t heard from him. I called from different numbers and he didn’t answer those either so it does make me concerned. He has been active on fb. I did notice when I asked him about work he gave me a weird answer so maybe he’s going through some stuff. I’ll stick with that. Idc to text him anymore.