Before You Start...

A guy. Cold, not the most approachable, and rather messed up - in his own way.

A girl, a young lady, if you prefer. She's... warm, *coughs* hot, approachable and obsessed with psychology for unknown reasons. She has everything she wants and all her family, friends, and acquaintances disapprove of her choice of interest.

Result in them meeting: The universe blowing up.