Eren saw you with Jean in the distance and he got very jealous. Jean started making out with you but you tried to get away. Eren was not happy about this and wanted to save you from Jean’s grasp but soon enough Levi came up to Eren to see what was happening and he realized the situation and how you just couldn’t manage to get away so Levi told Eren to get you and bring you back to headquarters and make sure you were fine.