Kaeya was your ex boyfriend, yet also the Calvary Captain, so you had to place trust in him no matter what. Even if he was an ass. This night, like the others, he was sickly drunk and at your doorstep as he pathetically sobbed for you to open the door. He sat on the step as he tapped the the door mutter your name and spewing nonsense. But what would happen if you gave in and helped him, hell, forgave him even. Besides, he didn't do wrong to you during your relationship.