In trouble for having too much fun?

Your wife sounds like she is miserable with herself, and jealous. I can see if you hung out 24/7 then yeah it would be a problem, but it sound like you don't do much. My wife don't even act that way, but then again i don't go out that much. Have a talk with her, and suggest she go somewhere, or you both have some time out together at a restaurant somewhere.