Everyone has desire for other people, even in monogamous relationships. If masturbating on pictures is your way to stay with her and not cheat on her, that’s perfectly fine. But it might just mean, since she can’t deal with it, that you’re not meant to be together.
You might look into poly or open relationships, or simply into people who understand that monogamy doesn’t mean no attraction to other people.
Everyone has desire for other people, even in monogamous relationships. If masturbating on pictures is your way to stay with her and not cheat on her, that’s perfectly fine. But it might just mean, since she can’t deal with it, that you’re not meant to be together.
You might look into poly or open relationships, or simply into people who understand that monogamy doesn’t mean no attraction to other people.