
well, just know that you should never send him any naked or near naked pictures of yourself.

as for what you can tolerate in this relationship, it's already more than i would stay for, but staying or going is up to you.  i can acknowledge that people may secretly fantasize about what they'd like to do with various persons in their circle, but to openly talk about it, even knowing that the SO would be affected by it, shows another level of disrespect to the SO that will be hard to deal with.  essentially, every night or half-day or whatever time frame, you know that your bf is masturbating to pictures of people he actually knows, and fantasizes about them.

the women you know in your circle, you'll be wondering what he is thinking about when he meets them, including any family or friends that you specifically interact with.