I am a 26 year old female, I am currently living with and in a romantic partnership with a 29 year old man.
I am very uncomfortable with him viewing and masturbating to teen, barely legal, exxxxtra small, and teen school themed porn.
We have lived together for 6 months, have been together collectively 2 1/2 years.
A little back story, when we were not living together and had just started dating, the topic of porn came up. He showed me the hundreds of files he had on his personal computer, we were sharing our thoughts about sex and the like. I figured he had so many files because he lived alone, but I also knew that he has a preference for smaller framed, seemingly looking like "girls". I am 5'2 and I at one point weighed 120 lbs.
Years later and we are living together, I am now at 138 lbs and I feel gross.
Now that we are living together, I figured our sex life would have increased, but in turn we barely have sex.
When confronted with our lack of sex, he claims "I have a low sex drive."
He has his teen porn on a flash drive, and I can see in his recent files the times and the dates that he has watched.

Now, I have been all over the internet and seeing "men just watch porn, that's the way that it is" or "men want youth, it's natural."

I live with borderline personality disorder, and it was hard enough for me to confront him in a manner that is calm and respectful (but I did) he in turn flipped out and stormed out of the room. We have not actually talked about this issue and I always end up saying sorry for bringing it up.

I also deal with some serious self image issues, and I constantly think about throwing up my food and/or not eating...just so that I can get back to being small again.

any advice? anyone go through something like this?