I like this guy, but he has a girlfriend that lives out of town. He is always initiating things toward me, sexually. We have made-out and stuff before but I can't help but go along with it. I know he has a girlfriend. I feel bad, cause he's like cheating. I feel like an accomplice in a crime. But I know what I want, and I want him bad. What the heck do I do? Stop? Go for it?