Tried my best to separate the tracks into a proper duet, it's sometimes unclear what Diana sings when he's more dominant, so I left her parts out. There's still a lot more to be fixed, more pitch shifts (i.e. tildes) and pitch finetuning necessary.
This duet is stuck in the first steps of development. p2 is - except the first line - a copy of p1 (from the solo version). Right now it can't be called a duet.