No sex

But my bf goes through "phases" of wanting a lot of sex & not. I only see him Thursday's-Sunday's because of school. 3 weeks ago, we were having sex every single day. But 2 weeks ago we only did it twice out of 4 days. 

HOWEVER, this week he was in the hospital for 3 days, but right when he got out we did it & he told me I "sparked" his hornyness back. But that was the only time we did it this week. 

I get really upset about it because I know he watches porn & masturbates to it, sometimes that more than me some weeks. I'll tell him I don't want porn to be more important than me (one of my fears) but he always tells me that's never going to happen...that he does me more than porn, it's just that some weeks he's more in the mood for one or the other. When I left yesterday I was kinda upset with him but he told me "just watch, were going to do it when you come back on Thursday". He's so confident that I'm worrying for nothing (probably am) & that we are going to do it, but it's hard to believe him when I see it not happening. We both want to be together forever, it's just so difficult for me when he's in these "dry" spells. When he's not in them I'm completely fine, but is this normal??? He's so confident nothing's wrong. I don't want to overthink this. I know sex isn't the main point of a relationship, but it's a big part.