Why did he remove me as a friend on facebook?

[Kells]

So i have a guy friend, who has become pretty close. We talk regularly and share the same interests. The last time i saw him i had WAY too much to drink and we kissed, then some people came over, and he left my place on good terms, I then kissed his friend that same night. Now when i got onto facebook and tried going to his page, he has removed me as a friend. I am wondering why? Does he hate me for how i acted when i was drunk? I thought he left and we were on good terms????
BUT! We were not even close in THAT way... i actually met HIM through a guy i used to kind of see... ugh it's so weird, and he even is back with his ex now so i know he doesnt' think of me in that way