Okay, she approached you with a harsh tone (bad attitude) and demanded to know about your private life? Typical of a jealous WW. What I don't understand is why you gave her an answer. Why couldn't you have just looked at her and say, "Really"? Then you could have walked out. She needs to be slapped by the reality of her decisions, and one of those is that she has put you back on the market. You don't have to see anyone, but she doesn't get to have that smug assurance.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!