Cheated At Work

I am 62 now. I had an active sex life in the first 10 years of our marriage, both in and out. Have not cheated now in over 30 years.
One affair I had. I worked as a manager in a video store located in a stop mall. Next door to the video store was a grocery store. Every day various employees from the grocery store would come by on their lunch hour to rent movies one particular young guy, regular customer. He was quite cute and flirted with me every day. One day I was needing to close for lunch, since I was the only one working, I would have to lock the door and close for a half hour to 45 minutes. He was the only customer in the store at the moment, and I told him I was going to close for lunch after he rented his movie. He volunteered to stay and have lunch with me. Chatting and flirting with me in the back room, he began to tell me how attractive I was and he only came in everyday to see me. He moved close and touched my shoulders and hair saying how he fantasized about being with me. 5 minutes later we are naked on the couch and he had me for lunch. We repeated this on several occasions. I think he ended up with a girlfriend later and the lunch date’s stopped.