My pussy got dry

My bf and I were having sex and then all of a sudden I wasn’t wet anymore so he got mad and stopped, Idk why I got dry I was so horny and it wasn’t him that turned me off. He always turns me on. Was it because I was in my head? I was just thinking about how come last time he didn’t finish and when I was thinking that, I got dry all of a sudden like my anxiety.. I got so embarrassed and now I think he’s mad at me.. ugh