My man isn’t climaxing???

We have never had an issue in that department... in fact he would always reach climax before or right with me.. all of a sudden he isn’t reaching!! I’ve tried all new things.. and nothing!! He even faked it the last 2 nights!! And I have gotten off but not as hard as when we do it simultaneously.. we’ve only been married 3 years.. we are under a bunch of stress as we just bought our house but since we been here he has gotten off like 15 times in a month(with me)!! He might be stressed but it seemed we were more stressed in the beginning and he got off sooner!! Now he is pretending; and we are ttc .. everything is together.. and all of a sudden he can’t climax!! It’s almost like he needs stress to climax!! I’ve confronted him, with the brutal details like “hey, your cum ain’t dripping out of me like it was before” and he will straight up say “ idk why I came” is he afraid?? Is he stressed?? I’m confused??