(WARNING: Evidence of Pairing sections may contain SPOILERS! Proceed at your own risk of spoilage!)
Evidence of Pairing:
The singer Oruha is the only friend of the lonely Suu who isn't allowed to love anyone (because she has the power to do anything which her beloved person could use for evil). They write a song together. They don't even know what the other one looks like, though, they only talk on the phone. There isn't much basis for anything but perhaps Suu's one-sided adoration/love/dependance, since Oruha has a boyfriend and is very happily in love with him.
Pairing Listing Author: Marina
Well... you can always head back instead...