It's not fair, he thought, but he bit his tongue.

This meant nothing to the both of you to begin with. This wasn't the first time he saw you in the arms of someone else, and he knew that you had seen him walking with someone other than you. It wasn't a thing. You never put a label on it, seemingly content with whatever it was that this was, and he had thought good riddance. Commitment wasn't his thing anyway.

So why did his heart still hurt so damn bad when he saw you with someone else?