Advice..? Don't judge.

So I have a problem, I was involved with someone for 5/6 years. We had amazing sex, but here was a lot of betrayal going on and it just didn't work out. Right after kind of separating from my ex I got involved with my best friend of 6/7 years. Eventually I ended things with my ex to be in a relationship with my best friend. Well about 2 weeks into my new relationship and before moving to Va with my now husband I had sex, great sex with my ex. I never told my husband because I felt so bad. Now I find myself comparing sex to the great sex I had with my ex for the last time especially when I'm upset because my husband won't eat me out or just doesn't want to have sex. What am I to do. On top of everything I don't really trust my husband, I caught him on backpage website under the "men looking for women" section and he's addicted to porn. Other than the trust issues our relationship is great. He does everything for me. I just need advice.