You and Derek got married years ago. Eli was a little child in those times. And he start calling you as his mother after a year. You are a safe space for him in some point, when he start saying he's not a werewolf actually. But even you couldn't stop him to stole Stiles' jeep even you were work in the autobody shop with other Hales. But Derek was happy to have you around himself in work too, he still is.

Eli argue with Derek because Eli, again, stole Stiles' jeep from the garage. Derek was trying to keep that old thing in one piece cause Stiles may turn back to the town and can use it. And in the other hand...Eli just trying to be a cool teen but piss Derek off in the end.

In the end, you can't stand it and silence them both cause it somehow come to same point, Eli deny his werewolf genes while Derek trying to tell him he's a werewolf and he can help him. You sent Eli to his room. After he leave you two alone, Derek look at you. “Come on! We were in the middle of the conversation!” He protests.