This Is Just Terrible
If you’re a married person and someone asks you if you want to go out, you can either say, “No, I’m married,” or, “Sorry, I’m married.” There’s a huge difference between the two responses, and it seems like the OP has chosen the worse one. She’s basically saying to this married man that he’d have a shot if she weren’t married.
Right now, she’s emotionally cheating on her husband, which is just awful in every sense. We have a feeling that emotional cheating will turn into physical cheating not long from now. After all, she opened the door to a new relationship when she called him a catch.