SA -no 2 x 4 from me either. Here are a couple of things that you may be interested to know. I have a very close male friend who went through a MLC, and he has given me a lot of insight into what they feel like. He has had a lot of therapy, and although he would like to reconcile with his wife, she does not want this. Anyway, he said he felt angry and resentful about his kids and his marriage and his wife, and totally trapped. He now sees it wasn't true, that it was other issues in his life that he 'blamed' on his wife and kids.
The other point is about a couple I know, [I have known the wife forever] where the husband's first wife had a MLC, and left. He married my friend around 20 years ago, and now realises he never dealt with his own abandonment issues over the first marriage. They nearly split up and are working hard on their marriage.
The final point is that my h having waited more than 3 years to begin divorce proceedings, then dragged them out for more than 2 years, and talked reconciliation during that time. We are now divorced, and as I said, it is actually a relief, although desperately hurtful at the same time. Nothing and no-one can make these people face their issues unless and until they are ready to do so
I do not think these people are OK at all, but the point is we have to go on living, and need all the help we can get. Love isn't a switch we turn on and off.
But thei rconduct is really no tthe way to deal with problems. If we are not happy in a relationship, it is mature and adult to share this, not to find someone else and start over.
You will be OK, but the rollercoaster ride isn't over yet.