I vote straight up and to the point. "So, Gabe, I was checking some account balances and see you stayed at an Econo Lodge. What's that about?" But you have to deliver it in neutral. Jumping on him will put him in defense mode and then you may not get a straight answer...
As some of the others said, maybe it was innocent. I don't like that he lied about it, but still...I know I could not handle staying with my mom and dad for a week, I would have to get a hotel or something somewhere in there! I mean I love my parents, but staying with them??? Not so much.
