While you didn't give too many details about your situation, it sounds like your wife is acting similarly to me when I was in a long-term relationship. I had a problem with some of the sports, i.e, time away from me, my ex used to do. I was a total jerk to him about the time he spent away from me.
I didn't know it then, but what I realized after we broke up is that it was much deeper than "we need to spend more time together." The problem was that I wanted things out of him that just were not within his character or personality. I thought we needed to spend more time together for us to be happy, but in actuality, we were not a good fit for each other. I found this out after dating and meeting guys who meshed better with my personality.
I agree with many of the other posters--talk with her and look for a deeper reason. I think it's more than simply jealously, boredom, or being control freak.