I think sex is very important. If someone has a relatively regular sex life and goes through a dry spell I can see how having sex even when not necessarily in the mood could preserve a relationship. However if you were never into sex I do not know how that would play into it. There have been times that I wasnt feeling it but once it started I was fine. I do not believe anyone should have to have sex but if its a part of the relationship normally and suddenly becomes a problem then I think someone should see if there is a health problem responsible for it. OP has it always been this way?