"I have a friend who has gotten her first boyfriend . And it’s great I’m happy for them but the more she’s with him the more I see her slipping away and not being there for us and just being focused on him. The guy is great he’s friendly and nice but she doesn’t even want me talking to them both after school. And when my friends needed her she wouldn’t come bc she “had” to go with him.

Should I tell the guy if he was a close friend of mine even before they started dating? Keep in mind tho that the girl was one of my best friends"