that part could absolutely change, if it would work for you otherwise! i had it in my mind they met playing video games or some other sort of nerdy hobby and nia moved to boston to live with her, after they'd done a ldr for awhile. the rest is totally changeable and we could come up with our own reason they broke up. if that doesn't fit with your girl, we could always say she was an ex after that? it's been a few years since she moved there and probably 2-3 of living there on her own, after they split up.