Hero is giving you great advice to not reach out to your ML.
I can tell by your posts that your mind is constantly racing that you have to do something to stop your W from leaving you. It's called the "illusion of action". The truth of the matter is when that happens it tends to make things worse. If you would of reached out to your ML it wouldn't have gone as you expected. The jealousy card won't work.
I was so excited when my ex was going to tell her dad because I thought it would change her decision. Besides her kids she loves her dad more then anyone in the world. She would never want to anything disappoint him. Well he let her have it telling her it was a big mistake, you can't break up your family and brought her to tears. Guess what, she got over it and didn't change her mind. He helped her move, painted her walls in her new house and cuts her grass. That's what parents do, stick by you even if they don't agree with their decisions.
Now I am going to be completely honest with you. Right now your W has a lot of $hit she needs to figure out. She is a serial cheater and needs help to figure out why. You have to give her the time and space to figure out her issues. It is probably going to include separation or divorce. You can't make matters better right now but you can surely make them worse.
She has to choose to want to be with you. That's the only way it works out long-term.
