Most Helpful Girl
It would be nice to tell the other person why. You don't HAVE to but it would be the right thing to do.
would you want someone to just say "I'm done" and that's it?
Most Helpful Guy
For one thing, it's nice to give the other person a reason instead of just disappearing like some asshole.
For another, it's nice to know why you want to break up so you know you're doing the right thing breaking up! There must be something that made you decide to not want to be in the relationship any more!