why a married man would give his number to an ex girlfriend and sent sexual messages to her?

[Agnostic Queen]

Well, maybe shes the one that got away.... men usually have those... unfortunately.... and you have been together 20 years... hes probably bored and this is exciting... for both of them..however.... as anything will die down..... if I were you I would ask him to move out... give him his reality.... thats usually what makes them make a decision which is what you want.... dont just stand by and let her take him from you..... kick him out... believe or not that will be the best thing you can do to keep him....... the sooner you confront this situation, the better. A man who caught off guard is vulnerable... a man who has plenty of time to plan is not.... so get a move on..... seriously....... dont be mean, be matter of fact, stay calm... at all times.... you dont want to be the crazy wife...... good luck