Many thanks for the supportive and informative replies! I can understand the advice, and of course am following new mom and dad's rules - well aware that times change and my old ways are just that - old....
A few months ago, I uprooted myself from my home state in the US, to move 1,000 miles at my son and his wife's request. They bought a house for me, near their own house.
From the first day home from the hospital with the baby, my son and his wife had asked me to come over for a few hours in the early evening to give them some relief and a chance to eat a meal, take a shower, etc.
Last week my ex-husband (and new Grandad) came to town to see our grandson. We have been divorced for 20 years. He still behaves like a jerk around me, and makes everyone very uncomfortable. So my routine visits were suspended, and yes, 2 days away was a new experience.
On reflection, I realized that I can use this time to schedule things like visits to the dentist, etc., and certainly have not been sitting at home waiting to be invited over... Mr-Ex will leave town soon enough, and I live here now...
I'm resilient and independent, and just had to remind myself that while my primary purpose in moving nearby is to be near my grandson, there is also life going on with many interesting experiences waiting to be had.