Some guys on here >:(

So im sitting here writing a reply to an advice collum, and this guy on my friend list starts talking to me. a guy i had previously reported as harrassing me. so he says hi and asks how im doing. i say ok. then he asks me if we are even friends. i say of course, why not? and he goes, i thought you hated me. so i tell him i didn't. and then he starts coming on to me! AGAIN! and so i nicely remind him of the fact i have a boyfriend. and he goes, your ugly anyway...! and so i said..i now know why you thought i hated you. your an asshole. your rude and immature. i reject you and you resort to insulting me. and then i blocked him.
and now i feel horrible :( he came here for support and i was rude to him. i really wanted to be nice to him, but it just made me so mad. and now i feel so horrible. i really wish i could tell him i was sorry, but im not really. we did this months ago, and i told him not to come on to me, that i wasnt interested. but he didnt have to insult me. idk.