Hi hopeful_cb
I had pretty much the exact same conversation with my H. Minus the part about the money.
H and I are still on the rocks. He says D, he says move on and then wants to hang out and ML.
So believe nothing they say and only 50% of what they do. Very important to remember.
And I agree with you, it is a disrespectful thing what he's doing, but in their minds because you are separated, it's ok. So there's not one reason for you to fight that anymore. You are not going to convince him if he really believes this and you are only going to make it worse if he does agree with you but just wants to be selfish. So leave it alone.
The only thing you can do now besides GAL, find out what it is about her he likes so much and blow her out of the water. Otherwise, don't bring her up anymore and besides, sounds like he can't afford to take her out.