i think i just messed up something good .. :-(?

so me and this boy have been talking for a while off and on and i really like him i wanted to be in a relationship with him but he just got out of a 3 year relationship so i didnt want to pressure him he got his heart broken so i just wanted to be there for him as a friend more than anything right now. well today we got into a little arguement and i hung up on him. ( i know childish) btw he's 21 and im 17. but i will be 18 in 3 mnths and he jus turned 21 so anyways yea i hung up on him earlier and he texted me telling me to delete his numer so i texted him back and said ok so then he texted me and said '' and i thought i wanted u to be my gf" so after that i texted him telling him how he was wrong about the conversation we had and how he carried it. and he texted me back saying '''its all good'' so i texted him back and said "ok" so now he's mad at me and i think that he doesnt want to speak to me anymore but i really want him too . i like him a lot but i dont know how he truly feels about me im just confused and i need some advice quickly .thanks in advance