We're in the "virtually never" - little support category.
I picked up a used MTB for her a couple of weeks ago (I made sure and asked if she wanted one first), but it has yet to leave the garage (too tired, too busy, etc) I make a point of asking every day if she wants to go for a ride, but no success yet.
As for support, she should be encouraging me to go out and spend lots of money on a new road bike, but so far nothing.