HELP!!!! GUY TROUBLES: does this guy like me?

okay so i have a guy friend that has been my friend for about two years. Hes in my homeroom cl and is ALWAYS trying to make me laugh. He knows when somethings bothering me and he is always nice to me, but sometimes can be rele annoying to other ppl. Whenever i say hi to him, he always starts a conversation with me and he brags about being strong. but its like only around me. he dated me for a day and than dumped me, but he still does the same things he did before he asked me out. Can someone please help me? Does this boy like me or is he just being nice???? Thanks so much!!!