Hmm, see that can be huge. After discussing it with your wife, the two of you may be able to find ways to do fun things together, or allow each other some alone time for fun. And even involving the family in things YOU enjoy. After all, you spend so much time catering to the children's needs, they should be able to join you on some of the things YOU enjoy as well. Enjoyment should be about the family, not just the kids.

Good luck, and let me know what you think.