So, this girl (you want to see) and you (you) are staying apart so all three of you can remain friends? Is it not possible for you (you) and this girl (you want to see) to ditch her (other girl), or is that more than you want to do?

She (other girl), already, agreed to let you be with that girl, so tell her, okay, now I quote, "You're shit out of luck."

edit: I'm sorry, I got lost. Forget this.