You and Bakugo were close friends (for now). You were dating someone, and never realized they was being unfaithful behind your back.

While you and Bakugo were walking and chatting, you finally saw it...

Your partner was kissing another person. When they noticed you, they shrugged and spoke up.

Now ex: Oops, I did it again. I played with your heart, got lost in the game.

They laughed as well as their new partner. Bakugo was livid.