No, it was a bit clumsy and of course I'm not suggesting that that is what the OP is and I did apologise to the OP.
However, some men-if they are not married to the partner they have dumped-do carry this idea.
Not all of them by any means but-in my professional capacity-I see enough of men who are not married to the mother of their children convince themselves that this is the case. It doesn't tend to happen until they meet someone that they do want to marry and she-and any children that he might have with her-become the real family.
It's most visible when he no longer wants to pay for the children he had with his unmarried partner and sometimes when he doesn't want to do things like have them in school holidays, when it might impact on plans that he has made with his second family.
They can think like that even if they have been married to the first woman but they are certainly prone to think it more if they haven't. It suits them to think of the woman they have married and any children they have as the real thing and they come first.
It is something that all women should be aware of, especially if they weren't married to you. They will promise the earth to begin with but when they do meet the woman they want to marry, that can all fly out of the window.
Anyway, the OP hasn't said if she was married to this tosser or not but from what she has written, I wouldn't be surprised if he does play this card. So don't believe anything he says, don't take anything on goodwill and make sure any promises he makes are written down in triplicate!