Carl Grimes!!!

You and Carl have been dating since the prison, and now you are in Alexandria. After a while, a new girl named Heidi arrived in Alexandria; she wouldn't stop getting close to Carl. At first, it didn't seem strange to you, but then she started trying to make sure Carl was always with her. Now you were having an argument with Heidi, since as Carl's girlfriend, it was affecting you quite a bit.
"Heidi: He's going to leave you, just you wait. I'm prettier than you, and besides, Carl is very kind to me."
To which you respond
"Don't even try it, that boy is mine."
Until you feel someone wrap their arms around your waist; it was Carl. You turned to look at him while he smiled at you.

a new girl tries to take your boyfriend away from you