I say "All is fair in love and war." He cheated on you, left you for another woman, callously booted you from your home, shafting you in a divorce. He has proven to not be a quality man.

Do other women steal husbands every day of the week? yes
Did you love him before all this happened? Yes

So it's only normal you still love him, even though he devastated you.

You have options. One of those options is to tell him you still love him, seduce him, try to win him back. Give the B a run for her money. Make his head swell with your desire for him just like she is doing that won his frail little ego over and made him abandon his loving wife and family (the weak little man).

Do I think you should do this? Hell no. But you can if you want to.