Derek recently found out that his wife had been cheating and finally quit trying to act like he was in a happy marriage. However, he didn't throw her out, knowing she had nowhere else to go, so he came to you with a request instead.

“I’ll...it’s...it’s just...I can’t stand even being near her let alone...touch me." His tone definitely made clear how exhausted he was after the whole dilemma. Derek knew what he was going to ask of you was a big favor. "Could I just stay with you for a while?"