I fantasize about seducing married men

So I read posts here or in r.deadbedrooms about broken or sexless marriages a lot. At first they were just fascinating or entertaining. While part of me genuinely empathizes and feels bad for men and women who are in these situations, I weirdly find myself attracted to the men (im straight) and aroused. Sometimes I can’t help myself and end up reaching out to the men and wanting to talk to them, comfort them, and see where the conversation goes. But in the back of my mind I want to push things, flirt, tease, and stroke their ego. As a woman in her early 30s, I feel married men are so easy because they are absolutely starved of attention and compliments. Then I start fantasizing about helping them with their sexless marriage by providing the sex. I feel like they’d be so grateful to me which also turns me on. I have no desire at all to breakup any marriage. I would never ever want the wife to know. I can empathize with a wife not wanting to have sex with her husband for so many valid reasons – stress, postpartum, low sex drive, etc. But I can also acknowledge a man having biological needs. I guess the idea of a man unleashing all of his pent up desire on me excites me.

I’ve never cheated on a partner but I did have sex with a married man once. And honestly it was the best sex of my life. I did not know he was married until several months after we hooked up and we never hooked up again. But I have to admit I was both horrified and completely turned on when I found out he was married. I have spoken to him once or twice since and would never pursue it. But I would be scared what I might do if I ever saw him in person again. I trust myself that I wouldn’t do anything, but I know what I would want to do…

Why am I like this? Is something wrong with me? Is this a harmless fantasy? I’m torn. :/ Is there a safe healthy way for me to explore this fantasy?