However you decide to do it, taper off slowly. I was hooked on lorazepam, among other benzos, for a good while when i was younger. Didn't know about the dangers of just quitting, and wasn't truthful with the rehab i went to. Had a seizure and cracked my head open on the sidewalk. Oh well, that was one of the lessons learned the hard way i guess.
Anyway, taper off, and i'd suggest whatever alternative you use for controlling anxiety, do something you both can take part in and enjoy. My anxiety is always less when i'm with friends/loved ones, and it may be easier for her if you're there.