Print out and memorise:

You: Hey Jack, we need to talk.
Jack: About what?
You: Where this, our relationship is going. I feel like you don't want to talk to me anymore, I really don't know if you want a relationship with me.
Jack: Not this again.
You: Why don't you want to talk about it?
Jack: Because there's nothing to talk about.
You: Maybe we should break up.
Jack: See, this is what I mean, I don't talk to you because you make a big deal out of everything!
You: Well have you ever thought about how I felt?! I do everything to please you, but I don't even get anything back. I spent all my money to buy you that Saint Seya doll, and I don't even get a sign of gratitude. As if I was supposed to have bought it for you ages ago or something. I really do love you Jack, but lately you make me feel like crap. You're like a totally different person than before we had sex. I've even changed myself because of you. I feel like I've been used. I get sick and depressed just thinking about it. Lately all I ever wanted was some affection from you, but you dismiss my needs altogether. I love you, but I think I need some time apart for myself.

Walk away into the sunset