Fucking Cheating Wife While Husband Waits In Car

When I was in college i there was a really hot 30 year old woman in grad school at my college in Boulder, CO. we became friends and she started buying weed from me. I didn't even sell weed. I would just get it for her. AND SHE DIDN'T EVEN SMOKE SHE WAS JUST GETTING IT FOR HER HUSBAND LOL. anyway we eventually started hooking up casually and sometimes her husband would bring her over to buy weed and i would fuck her doggystyle facing the window where he was parked. I couldn't really see out because the curtains were closed. But I would come inside of his wife doggy style facing his car and I would always go look outside after we finished. I don't think he had a clue. But I wondered what he must have thought when he would see the light in my room come on always to inevitably turn off for about 3 minutes before coming back on and her coming outside a couple min later. She was sooo fucking hot. Did he really not have a clue? What do you think?