Hi, sorry this is happening, whether or not it is a 'true' MLC. I would definitely google and read Frank Pittman's article 'Beyond Detrayal. Life after infidielity'. It is a wise article written by a MC who is anti-infidelity. And it might help you to understand what is going on.
MLC can hit any time, and my h was over 55 when he went into MLC. We had been married over thirty years. If it is a total MLC you will see a complete change of behaviour/personality, either slowly or overnight. It is as if a dam breaks At some point he will alomost certainly say 'I love you but I am not in love with you' Known as 'The Speech'. And will proceed to do a string of things you never thought possible.
So I would read the Frank Pittman article, live your own life, and play a waiting game. I really wouldn't kick him out, nor would I 'punish' him.
Do you want to save your marriage? - a lot easier if it sn't MLC. Some hard questions, but as Pittman is very clear, infidelity is never the way to solve any problem within a marriage.
Be nice to yourself. I would go on a bit of a spree, and make sure you look great when he does get home.
This may be an unpleasant blip, that you can work through, or the prelude to a full MLC, but if it is a MLC you cannot stop it. The causes lie deep within chldhood.
