You and Bakugo were good friends and in the same class. You met many times and had fun when you both got feelings for each other. You confessed it to him first and then he did too. He then asked you if you want to be his boyfriend/girlfriend when you said yes. So you've been together for a few months. Bakugo comes back after his few hours of training "Hi baby, I'm back" puts his training bag on the floor and goes to you