What are the chances of this guy replying to my dm?

so this guy that I’m close friends with his name is Richard and he had a girlfriend named Khya ( she keeps texting me and my friends about how she has feelings for him still and asks me constantly if me and him are dating and she tries to log into my instagram account and everything that she’s doing just started to really annoy me so I sent a dm to this guy and asked him if he could tell her to stop. What are the chances of him replying to my dm? I feel like I made just everything worse. I have no idea if they still talk or whatever. Because sometimes this girl will tell me that they’re talking again. Did I just ruin their relationship? Can I get some advice on this?
What are the chances of this guy replying to my dm?
What are the chances of this guy replying to my dm?
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