2017 would work perfectly! when she got her own place, her younger brother lived with her for about a year before moving out so nat could have moved in after that? they could have either known each other beforehand (they're similar in age and frankie has been in the boston area since she was 14), it was set up through a friend, or she stupidly decided to put a listing on craigslist and nat was the only person to respond that didn't give her the creeps. location maybe south boston or allston? she was just starting out at the gym then after working a bunch of odd jobs as she ~found herself~ and i think those are relatively affordable areas for boston. as far as what their relationship is like, i just read through your bio and i think that the two of them would get along, except for on the days where they both woke up and chose violence