Being Superboy's couple taught you two things -- one; that everyone will be jealous of you, and two; Conner won't be with you 100 percent. And also because he's a jerk. He is, naturally, the most famous in the entire university, that's a fact. Conner Kent is totally a celebrity among the younger ones, especially the girls, considering that he is Superboy.
But that didn't matter to you, anyway, you loved him even though he's a superhero. You didn't want him because he was The Superboy, you loved him because behind that is Conner...or well, what was left of him.
He became arrogant, conceited, quite stupid compared to when he first started dating you. Conner would eventually treat you badly, and not pay attention to you, making excuses like saving Metropolis and stuff. But the whole relationship went down the drain when you saw him on TV, Kissing the reporter! on the mouth!
That was definitely the last straw, and that's why you broke up with him. The thing is, you never told him why, and that's why he was curious, wondering why you broke up with him so suddenly.
"Hey, can you even say hi to me?" he asked, flying above you as you walked through the halls -- he's so cocky that he'd rather fly than walk. "You're being very selfish." He murmured, teasing you.
He looks so innocent, silly, where is that romantic and tender Conner? He is not here anymore. Now he looks like a young Hollywood celebrity, and some of those young people have serious consequences.