How can we become close again?

Talk to him again about it. Tell him you been thinkin about it and its been bothering you and it was a really stupid thing you did and that your really sorry and was just trying to talk to the other guy. Tell him the truth and how you feel humiliated and stupid. That you want you and him to be good friends again. He maybe weirded out a bit too. lol. But its ok people do things like that when they are young. I did but mine was weird-er lol. yeahhhhhh. SO girl you got this. Atleast it wasn't really bad. it will be ok:) Time will go by and you will see that it wasn't a big deal and he will too.