<human>: Can you succinctly summarize the text in 1-3 sentences?

My wife and I have been together for almost 20 years. We're both almost 40. I love her to death, but over the years she has become much more conservative and "boring" (for lack of a better word). For example, we went to a party last night and after some nudging she had a few extra drinks. I hoped this would get her to open up and let loose. Instead, she talked about kids' education and really specific medical cases regarding kids' health care (she IS a doctor, but nobody else there was).

I miss the carefree days of our young marriage. What can I do?  We still have very frequent sex (4-6X per week), and love each other a lot, but she doesn't seem to have a lot of fun anymore.  Even on vacation, everything is SO serious.
<bot>: Wife loves me, but no longer is the fun carefree woman I married.  I REALLY miss just going out and having fun, but don't know how to get that back.