I'm going to discuss relationship problems with classmates
Is there a reason why you are going to discuss relationship problems with classmates.
I figure that the I'm not the only person that had this issue and might as well just talk about it with them
I think it is best not to disclose your personal issues with your classmates like that. Kids can be cruel so you want to protect yourself from bullying. You don't want to give some kids ammo to use against you or make fun of you.
Even if I don't tell them about it they make fun of me. WHy does it even matter?
If they already make fun of you now, giving them even more ammo can't do you any good. It'll just make it worse, and you don't want that. If you really think you need to discuss your personal problems with someone, make sure it's someone close to you rather than your classmates.