Affair with my boss

Starting during the pandemic close down days I spent all day with my boss at his house, working. His wife was an essential worker, a nurse, so we were alone when she was working a shift. One day he told me that the stress was getting to his wife and she hadn’t had sex with him for weeks. I offered, to relieve him of his stress. I had sexual stress too I hadn’t had sex for two years since I broke up with my then boyfriend. Innocent, helping him out. But now it’s almost two years. It’s his privilege. His wife knows but we don’t talk about it (I should say that we are back in the office since October of last year). We have sex at my place, either at lunch or right after work. I know he wants sex when he asks if I’m on my period. He doesn’t like period sex, that’s why he asks. If I say no, then he tells me we should go to lunch (have sex at noon) or he will see me that evening (have sex before he goes home). His wife works shift work, so it depends on what shift she is working on whether we go have sex at noon or after work. She talked to me about condoms one day, just dropped in the subject. I told her I wasn’t a condom fanatic so she asked if I had made sure I wasn’t carrying something. No, I’m clean so If I am he is giving it to me. After that we haven’t talked about it.