Is it just hormones?

Lately I haven't had any desire to have sex with my spouse, nothing he does turns me on, and sometimes I don't even enjoy kissing him like I used to. 
We fight occasionally, he's very insecure and always accusing me of cheating or lying, and if I post a photo of me on Facebook he thinks I do it for "attention"... could all that maybe be making me less attracted to him? Or is it my hormones, but sometimes I REALLy have to force myself to have sex with him even though I want it. If that makes sense :/ 
Any help on what it could be????? Ugh