Most Helpful Guy
He wanted something casual. Deep inside you want something more. He wanted to hook up with you, no strings attached. He was using you to fulfill sexual desires and assumed that's what you wanted too. But you don't. And a**hole guys do this all the time and girls like you fall for it over and over again. (I mean come on, why else would he want pictures of your breasts?) Be thankful you didn't have sex. That would've really bummed you out once you realized that he "only wanted a warm body".
Please learn from this and move on and forget it. Again, I can tell that you deep inside want more than something casual (otherwise you wouldn't take the time to write this). So be careful with who you interact with and mess around with. There are tons of guys who just "want a warm body" but there are also guys who genuinely care and will want to stay in touch. Use this as a learning experience to help you decide which one is which in the future.