Why Bliss?
Zoom back. A few years ago, I was really into Christopher Pike. He wrote the Remember Me trilogy along with several other books. (This is also where I get the nickname The Fall Girl.) The Remember Me Trilogy surrounds eighteen-year-old Shari, who falls several stories to her death in the first book. In the first book, Shari is trying to figure out who killed her and why. She goes over the time leading up to her death and afterwards when she is searching for her killer. Before her death, we meet her friends, and her best friend (whose name escapes me at the moment) has this habit of giving nicknames to people that fit their personality (at least through her perspective; she calls Shari's boyfriend Spam). There is this charcater named Amanda (who turns about to be the one who killed Shari, but that's not why she's important for this explanation) whom Shari's best friend calls "Bliss." Apparently, ananda is Sanskrit for bliss, so it's close enough to Amanda to stick.
Besides, it was the coolest thing I could think of at the time.