You know what to do. There is no possible scenario where dating this guy is a good idea. Because the second you start dating, he's going to treat you just like he treats the other girls. What's that you're saying? "But it'll be different with me, because we're such good friends and he acts like a gentleman around me. Those other girls are just skanks." Nope. If he wanted you as his girlfriend, he would have made a move by now. Clearly he doesn't want a girlfriend. He wants to sleep around and break hearts. And he wants to hang out with you and have fun and share his feelings because there's no pressure. He gets to have the openness and companionship that comes with a relationship without all the sticky commitment stuff.

The second you start dating, or sleeping together, he's going to treat you like dirt. If he was in love with you, and ready to settle down, things might be different. But once you cross that line, you're going to be just like the girls he screws and then promptly screws over. Because eventually he'll want to sleep with someone else, and either cheat or dump you abruptly. Maybe you'll catch him with another girl, or maybe he'll just string you along in a friends with benefits situation until he gets bored and dumps you over a text message. Either way, you're going to end up hurt and the friendship will be ruined. Once you cross that line, your friendship will never be the same again. In his eyes, you will no longer be a good friend. You'll be the girl who wants to be his girlfriend, and he'll immediately pull away.

I hate to break it to you, but the fact that he treats you like a decent human being is proof that he doesn't want to get into your pants. Chances are he has more respect for you than he does for the girls he sleeps with. Take that as a compliment and focus on what you have together. He's a good friend; one who shows you his true colors. You know that he is capable of being a decent human being. Why do you want to toss that away? It's too bad that you've fallen for him. Right now you're seeing the good side the other girls see, but not the bad side. The best thing you can do is take some time apart until your crush subsides and you can go back to just being his friend. Because right now this guy is not relationship material. It'll be hard, but in the end you'll still have a best friend. And who knows what the future holds when he settles down. For now, you know this guy is trouble when it comes to dating.