I can feel your pain man! I'm not going to sit here and tell you what to do, but it sounds like you're really crazy about your girl! It's awesome, but I don't care what any female says, once they watch you fuck another chick it's like they lose something from the relationship. You do you homie, but I'd really make sure that's what you want to do with a girl you plan to marry! Married women don't have souls! Lol!