This guy wants to leave me ...

idk what to do. I'm not dating this guy but he wants us to soon and he tells people we are talking when literally i have him my number on New Years, but we have texted every day since then. I really like him and we have hung out twice at my house since then. But i had this friend who needed a date to sadies and i told him i would go with him but when I brought up going to sadies with someone else to this boy I'm talking to he got mad. But my friend is someone i liked last year and part of this year. So I told the guy i was talking to I was going to sadies with a friend and he is just a friend he is telling me he wants to leave me. He thinks he should just go and we should be done. I don't want him to go because i care about him so much and i have told him that over and over and he keeps telling me he is frustrated and what happens happens. WHAT DO I DO!?