Servicing him while my car got serviced [F][M][cheating]

I went to get my oil changed at the dealership I bought it from. I was sitting in the waiting room working remotely and the owner who helped sell me my car and who I’ve known socially was there and came over to say hi. Our eyes kind of held each others and he said he was kind of tired. I mentioned at least he must have an office to crash in and just tell everyone he’s busy for a little bit. He laughed and said no but he’s got hidden spots to hide in. I turned my head to the side and said show me. He said give me a minute I’ll be right back.

Back story. I’m married… he’s married.

He comes back and says follow me. I grab all my stuff and we walk through these doors then rows and rows of car parts. He motions for me to leave my purse, jacket and work binder on some boxes and follow him up these metal stairs. He leads me over to a leather computer chair tucked in a corner and says this is spot number one. Then walks past me and says and over here is spot number two.