This only has three chapters so far and I’m not sure if it’s supposed to be part of an anthology series or something since the wife already gets her revenge but its pretty satisfying:
https://www.mangago.zone/read-manga/how_to_get_rid_of_a_husband/
This one is ongoing but chapters 1-8 are probably exactly what you’re looking for (chapters 9-now is a different story involving a character connected to the MC of the first story but it deals with a stalker and not a cheating ex).
https://www.mangago.zone/read-manga/my_ex_husband_sent_me_a_second_chance_love_letter/
Hi, please recommend me romance something that is like couple breaker (not really the same plot) but I like the cheating exes then revenge and the fl is strong and got a better man and the exes got a bad ending haha
Ps. I read marry my husband already