Dreaming about sex!!!!

I am going on 5 weeks with no sex I repeat 5 weeks with no sex and he is sitting across the room like nothing. Im at the point I'm dreaming about hot sex but hes like whatever.... is it his age 35, is it the kids but when they are asleep its no excuse, is it the fact he is so nervous we will have another baby, worst case scenario is he cheating!? I am a loss of words what it may be I mean ya only young once whats there got to loose anyone else have this issue 🤦🏼‍♀️🤷🏼‍♀️