Gabriel also has a bad history with friends and lovers betraying him after he's given out a little trust. Or him just failing fantastically at relationships... Which at the moment has him frowning across the room at the TARDIS cuddling up to the Doctor.

More often than not, Gabe expects people to hurt him. It doesn't really come as a surprise that the rift might be an equally vicious arbiter. "Do you think she's gone back to...wherever both of you come from?"