Is it harder when your ex moves on with someone they cheated on you with or a new random person ?

I imagine it’s harder if they move on with someone they cheated on you... my husband cheated on his ex wife with someone, she left him... he said he was very unhappy 🙄 and the other woman was basically waiting for him to leave his wife... his wife ended up leaving him... him and I started dating, we were friends before.. the other woman was very angry and felt betrayed lol... him and his wife share a child together and she sounds like she hated the girl for breaking her marriage, when she found out we were together she has never ever given me any hate.. she seemed okay...

Fast forward a few yrs later my husband pulls the same crap and cheated emotionally. Same story, he was unhappy... well I left him to rethink his life..... the girl he cheated with is abroad and he says there is no future with her.. even thou I left I get this overwhelming anxiety sometimes that he will end up with her... I know I shouldn’t hate her but I really do.. it’s silly because I should be upset with my husband which I am but I imagine I’d be so angry if he ended up with her because I’m pregnant and I never want to deal with her for the rest of my life.... but I feel a sense of peace when I imagine him with someone else other than her... is it weird ?!! I feel like we both loose lol... especially since he has told me she mentioned, she will wait for him for as long as it takes 🙄🙄🙄..... he has a son from his ex, I’m pregnant now and I know he won’t go live abroad...