> I don't know if she's going to stick with it when she leaves.
It's lovely that you got her into exercise, when she leaves you could still arrange to meet her at the gym for workouts assuming she doesn't live miles from the gym, retiring can be a nasty shock for lots of people since they go from full days to "what the fuck do I now" in a weekend.
Unfortunately, she only goes when I go, and she's retiring in seven months. I don't know if she's going to stick with it when she leaves. I hope she does, as she's been making some great progress.