Yeah, take a break from being R cop for awhile. It's summer. Go out and have some fun. Go to the book store and at least flip through some of Peace Between the Sheets. It gives some really great suggestions for establishing some good ole fashioned EC.
Find things to LOVE and appreciate about your spouse. As GEL says, see what's always been there, right before your eyes.
Understand that your resentment is YOURS alone. Fight IT not your wife. When you can get rid of it... you will be able to see your W and your sitch in a whole new way. And if you can't get rid of your resentment, ask yourself why. What are YOU getting out of it by keeping it?
Find your faith. Look for the signs you had so readily seen a few months back. Talk to you wife. Tell her how you feel without any expectation of her DOING anything about it.
