<human>: Folder of "mementos" being a folder in his Pictures application on his Mac. 
  I'm chillin here on reddit and find this dope ass sloth pic that I know, the second my eyes meet the screen, that this art MUST be his background. 
  I'd like to call myself, as a girlfriend, thoughtful. 
  Anyway, so I'm browsing his picture shit trying to switch his background, and I see this folder titled "mementos"... How could any SO not open that (rhetorical)? 
  I wish I didn't. Explicit photos of girls. In positions he loves to see me in. Oh, and the first pictures my eyes so horribly burned into were professional nude photos of his model roommate.
  I should add that I have this serious uncomfortability with pornography. I don't know why or how it formed, seeing that I am very much healthy in the sexy time department, including naked pics, and I consider myself attractive.
  Nonetheless, I've literally walked out of his house during those sexual scenes in "Game of Thrones". I've sat outside on his front steps for 20 minutes, wondering if the scene is over and then remembering that, even if it is, he never came to get me. We had an uncomfortable confrontation where I had to pretty much beg him to stop watching porn.
  Right now, all I can think about are those naked pictures of myself in his phone. When can I delete them? The thought of those photos someday entering his "mementos" folder makes every one of my internal organs slither. 
  r/relationships, help me. Your boyfriend/girlfriend is supposed to make you feel good about yourself, and this has made me feel worthless. I love you guys.

Condense the text into a few key points
<bot>: BF and I have had multiple altercations in the department of his porn/nudie pix and shit just hit the fan...again.