I totally agree with Yoyo, STOP talking to her! Don't answer the phone, no matter how much she calls! She's angry. She wants to retaliate against your H and you. She wants to make waves. Don't let her. And, are you sure she's telling the truth about V-Day night?
And, the nicer you are, the more calm and collected you are, while OW is the opposite, is in your favor. That is what happened in my sitch.
If you have so much anger against your H, then detach for awhile. Tell him you need some space. We all know how those lies can infuriate you. GAL and remember the 48-hr rule. Do some reading on forgiveness -- it helps...
