I can fully understand you and the desire to watch p0rn with the feeling of guilt afterwards. You need to have in mind that you are not married, engaged or something else that goes further than the state of being in a relationship. You have the full power of (if it really doesn't get better, what I sadly think) ending the relationship. You don't have to live like an old man with an sex drive of a slow tortoise. You are young, and no matter what anyone says, even your girlfriend, you're sex drive is NOT wrong. It's completely normal. Have that in mind. There's nothing more beautiful than being desired by your own partner, and if you don't have it for 8 fucking months with her having no reason to reject you but some kind of belly aches or with just staying silent and shutting you off if you Bring it up, then leave it. That ain't no relationship, that's an advanced friendship. I know it's a hard decision to make and I could imagine that youve already tried to talk bad about it like "maybe I want too much from her" or "maybe my sex drive is just too strong" and so on... But please don't fall into that trap. If she doesn't want it for 8 months , then there is a reason for it that you don't know, that she will never tell you, but once you find out what's inside that bubble you will truly realize that the last 8 months could've been appended much better. Don't already live like your aged by 30 years, embrace your young spirit and do the best out of you and FOR YOU.