Sex through off ph

Hi y’all, so me and this guy I talk to we just hook up from time to time but real good friends. So we ended up having sex one night everything was good I had no smell! He ended up not pulling out fast forward to the morning he woke me up to have sex again he pulled out then afterwards I went to the bathroom and now I smell not so good down there…. now he’s being weird to me when he threw my ph balance off