Is this wrong?

Is this wrong? Okay so i had this friend and thats all i ever wanted to be with him is friends. Well then he had to go and tell me he liked me!!! And that just made me uncomfrtable. He would be flirty and the conversations changed and he would talk bout how things i did was just so cute. Like i was actually tryin to flirt back. i made it very clear i wasnt into him and that i was all bout my man.
well then he kept tellin me how he would/ and couuld escept that, but he continued to flirt with me!!!!! And that got on my nervous. Cause i dont know how he is used to flirtin but he was actin strange to me, lol.
well i ended the friendship and i know i hurt his feelings but i didnt want to put up a front all the time and act like everything is fine when its not. When i ended it he just kept tellin me i was so immature and tellin me whats wrong with black women. so i went off on him. and he was actin like a lil kid bout it. i kept tellin him to stop textin me and he had the nerve to say everytime you text me i will text you back. i bust out laughin. i mean he is 20 and im 17 so tell me why he actin like that at that age. but is that wrong? i mean i just couldn't take it. it was just so weird.