There is a novel where the MC is poor and has a girlfriend only to find out she is a gold digger. But the next moment, one phone call later. He turns out to be rich and acted poor in search of something genuine. I'm asking if there are any similar novels where the guy ruthlessly rejects the girl or she feels immense regret after seeing his success. (preferably "modern day", cultivation novels pursue the dao and ends up very lackluster when it comes to the above mentioned)
80% of the modern Chinese cultivation novel. At the start of the novel (when MC is transmigrated into the body of the guy) ,the Guy is rejected by a girl/Fiance because he is poor and trash ,but afterwords she regrets it and our MC says fuck you
i dont know the name of the novel but its from the author of Peerless Martial God, the mc in that novel trains a girl but she rejects him for something but suddenly hes been blessed with power so he rejects her it may fit your criteria