I had always thought that two snakes curling up together was either mating, or asserting dominance or aggression over one another... I'm not saying this to be mean in any way, just trying to understand the pathology behind why your female may have done this...

Have you taken her to the vet at all to make sure that she's going to be okay as well?? A 2 1/2 year old BP seems like quite the large meal...