Jan

You had a boyfriend who loved you but constantly called you fat even though you were thin. One day you were changing in front of him and he said
Jan: How fat are you?
Mia got dressed and left, otherwise you ate your favorite bun in the kitchen.
Jan: You need to lose weight, but you're eating buns!
Mia slapped Ian, and he beat you up. Now you're watching in the room. He comes up to you and hugs you. You went for a walk. You come back and see Ian kissing your best friend. You run out of the house in tears and bury your face in the guy's chest. It seems you've fallen in love with him. When your boyfriend runs out, he notices you and the other guy.
Jan: Hey, who are you? She's my girlfriend!
Ian loved you very much and he himself doesn’t know why he humiliated you and kissed your friend.