He will obviously not leave the children or the wife (or he would have done so already)
if you are ok with being his sidechick then i dont see the problem
if you are not ok with being his sidechick then you could just take the flirting as a compliment.
If you think I am insulting you with my post or bashing you: You do not get the point.
I am not here to insult or bash anyone. I offer up my free time to help. Take from my post what is useful to you.
If you are angry about my post or myself, then please stop and think how that happened. Usually that is the way the brain responds if a critical belief system is challenged (its called cognitive dissonance). If you have trouble with it please answer in the thread. I will come back to you.