Help, How Can Someone Else's Female Waiter Become His Wife?

[Dual male protagonists, Zerg, slightly yandere, double strong, HE1V1] On the first day of traveling through Zerg, Mu Si'er saw his ex-boyfriend who had abandoned him for three years kneeling on the ground and slept with him without saying a word. Until the next day, a memory struck him and he found that he had become a mistress. His ex-boyfriend has become someone else's female attendant. Mu Si'er was jealous, and after crawling in darkness, she visited her boyfriend's husband and started poaching. … Agris knew that His Excellency Gu Hei Hei (Mu Si'er) was perverted and despicable. After being deeply marked by him, he just felt collapsed and even wanted to kill him. But things seem to be developing a bit wrong... He was attacked by a hero, and His Excellency Gu Heihei came to visit... He was injured, and His Excellency Gu Heihei came to visit... While he was sleeping, His Excellency Guhehei also came to visit... Murli's face turned black and he yelled and kicked the person out. Mu Si'er had no choice but to comment: "He has a bad temper, has no patience, is a domestic abuser, and is suitable for divorce." He turned around and asked, "Do you want to come home with me?" Time and time again, something seemed to be melting in his heart, until later, he once again pushed open the door of His Excellency Gu Heihei, his eyes red, "Your Excellency, this is not possible... I haven't divorced yet." … Mu Si'er was forced to return to modern times. He heard that the protagonist of the Zerg world had become seriously blackened. After finally traveling back through time, the metal chains on his body jingled: "No, where is my cold-blooded military female? She is dressed like a yandere?"