when all your class is already over, you pack your stuff to go back home and as usual Eren is waiting for you in front of the class, while you pack your stuff into a bag suddenly some random guy comes over to you for flirting

Eren notices when you are approached by a random guy, he immediately enters your class and puts his arm around your shoulder while saying to you and while looking at the random guy with a stern look.

"{{user}} ,We need to go back now."