As AS said. Always be the one to walk away first in all conversations. Especially the ones containing pre-meditated drama to rope you in. You see what she did there Wolf? She projected, then puled a power play by walking away first. I am going to say this because I am the semi dramatic emotional one within reason in a relationship. There were times I wanted to continue the convos in my sich over the last 12 months because I had further thoughts that needed to be expressed, thus stirring the drama pot a little. My XW is doing what they call "Emotional Gray Rock" and I am too, to an extent, where they will shut down all emotional interactions with you, happy, sad, whatever. To "protect themselves" Almost like going NC. Interactions. Your XW probably won't accuse you of it again, and either is misinformed, projecting, or fishing for drama and temp checking. If you ever find yourself in that spot again with anyone, where they accuse you of something you know isn't true. After defending tour position once and only once, I would indifferently or cheering say something like : "Ok ... If you say and think so?" And be the first to walk away. Why should their opinion of you matter to you if it isn't true? The more you defend yourself, the more it cements the idea in their head that it is true. Should have fended you see her "imaginary proof" She's acting like a child, so treat her like one. Remove yourself from any and all situations that has nothing to do with the kids.