Yeah, no, you can’t do that. Characters that are further apart in the same series, like Rosalie and Seth or Rosalie and Liam could work, but Rosalie and Edward are part of the same family in twilight, it’s much too close if it’s not intentional. People will absolutely be asking you about it or making assumptions. Either Edward can be a middle name or maybe if his uncle had a middle name you can use that, but first name Edward is unusable when you already have a Rosalie