We do discuss, but it becomes quickly a little akward. I don't think she is interested in trying many new things, although with the right circumstances I think she would be willing to try a threesome one day.
Again, not too much into sex in general. I'd say I get some action about once a week on average, and often because I engage (although she sometimes gets really horny, but it is pretty uncommon). Definitely have to take care of myself often so I do not get too frustrated. I really really wish she was more into it.