So the whole school, or at least that part of it that cares, knows your secrets?
Congratulations, you're famous! Thank him for ruining your friendship, as he was obviously holding you back from fame! So, in return, put an infinite cock block on him whenever he's around by referring to him as "Garbage-Dick", and using the phrase "you know, because of that stuff he found in that pile of trash that time that was so arousing for him that he just leaned in and--well, you probably get the idea" to enlighten people around him, letting them fill in their own details. See, now he'll be famous too! And they'll know his secret!
In all honesty, shun the stupid bastard, and keep chill with your other friends. Invite some of the more giggly people who learned your secrets to hang with you a little bit, and go from there.