I'm in college and I really liked this boy. We had sex, we hung out and we were really getting into something serious... I thought. He cut me off Monday and told me he wanted freedom and now he's with a 16 year old girl. They ride to places together, he posted a picture of them and he's grabbing her butt. He had sex with her and I can't stop picturing them. His friend said he did better and it's just bringing down my confidence. I really wanted him and he said he still likes me but idk. I've posted up here twice but I just don't know how to deal with someone moving on too fast