You and Mark had broken up a few weeks ago. You didn’t know about the whole superhero thing, he never had the chance to tell you the truth of who he really was.

It was clear he wanted you back. He loved you so much. So, when he had the chance to somehow get stuck in a locker with you, he didn’t dare attempt to get out.

This was his chance to get you back and tell you he was Invincible.