What was his name? May I ask what the name of the male protagonist of this novel is?

It was a modern novel. The female lead was called Ruan something, the male lead was a gangster and very rich, and the male lead's subordinate seemed to call the female lead Sister Ruan. The male protagonist and the female protagonist had known each other since they were young. The female protagonist lived in the male protagonist's house, and the female protagonist's family was the male protagonist's servant. The male protagonist doted on the female protagonist very much and even raised a dog with the female protagonist (he raised it when he was young. When he grew up, the male protagonist and the female protagonist also appeared when they met). The police wanted the female protagonist to be an undercover agent to expose the criminal deal that the male protagonist had made in the underworld. Later, the female protagonist went back on her word. The police shot the male protagonist or the female protagonist midway. Anyway, it was the male protagonist who was shot. Later on, the female lead thought that the male lead had died and helped the male lead erect a tombstone. After a few years, the female protagonist and the male protagonist met. The male protagonist brought the female protagonist home, but the male protagonist's close subordinate (equivalent to a brother) felt that the female protagonist would only be harmful to the male protagonist, so he wanted to kill her (in a bad way anyway). The female protagonist found out that the male protagonist had a girlfriend at the male protagonist's house. Later on, she found out that it was because there was a part that resembled the female protagonist, like her voice or something. The male protagonist's subordinate reminded his girlfriend many times to not forget her duty (because that girlfriend humiliated the female protagonist). Later, the male protagonist's subordinate fell in love with that girlfriend, but that girlfriend refused to believe that she was the male protagonist's girlfriend because she resembled the female protagonist in some way. She went to ask the male protagonist, and after getting the answer, she jumped down from the second floor as if she was concerned by the male protagonist...