Search Results: leaving my boyfriend

We had been flirt for a few months and have been dating for 2 months. A few days ago he came to me we had sex for the 3rd time his penis was down after 10 min sex and had difficulty getting hard etc. but we were fine when we left he said baby we will handle this etc. we kissed and hugged. The next day at work he was acting weird I saw him with the girl I see him a lot lately. I was upset and ignoring his attention. When I asked him you flirting with other girls in front of my eyes? he said she is married woman with a child you know that right and he looked at me I was acting werid. Normally we text each other when we leave work he would drop me off at home sometimes even though I went to the department he worked at he didn’t pay any attention I saw he had closed everywhere he was done leaving. Anyway I went out while waiting for a taxi he texted did you go out I said yes and he replied I went out just fine I just wrote but I saw him go 10 minutes before I left. He didn’t text I don’t know what he waited for. He said he was invited somewhere for Halloween that day and he said he was extremely tired did he go there I don’t know either. Anyway in morning I texted good morning honey how are you and he texted I am at work still tired etc. we talked very briefly. After couple hours he first posted a wise saying about ego on his Instagram story, then he posted a reel of a man eating pizza on a mountain at sunset, it says looking forr people to do this activity with. There is an app we use for couples, he changed his mood to ‘sad’. I don't understand what is his problem?