Married woman wants an ongoing ual affair with me, I already had with her in my house , on my lunch?

break, while she was on her period...i used a condom...she seems freaky, at first I told her that I didnt want to have with her anymore, and she got upset then I told her I didnt want her, and more . aBut I told her that I did want to sleep with her again...What should I do? She told me her husband is a workacholic.....I asked her suppose you fall in love with and she said she can't....I haven't gotten myself into a situation....