Should I confront them?

[!?Massimo?!]

Although you should confront them, it's not even necessary to do that, stop hanging out with them, go find some new friends. Trust me, in a school environment, it's usually really easy to find other people. You don't owe your toxic friends anything, they're not even your friends.
Sorry to hear about this and good luck in your future.

Also, just a side note, even if you do end up ditching your current 'friends' and not being able to find new ones, from what i understand, your graduation is soon and chances are, you're not going to see many people from school anymore anyway. but good luck all the same