If you'd lived 39 years outside the UK would you want to return to live there? Would you rather have a holiday to visit relatives and see new sites etc?
The place where you live has a bearable climate - you can manage without a heater in Winter but the Summers are extremely hot many years. (It usually takes most people about 6 months to 2 years to aclimatise completely - depending on age and how typical seasons are.)
You have an internet connection so you can see very well what is happening in the UK.