I was thinking like @Neizvestnaya that probably the dog won’t live the entire 10 years, but it sucks to be waiting for your dog to die, especially since I would assume in the scenerio I love my dog. I think if the dog was young I would hope to find a home for him near me where I could have visitation. But, it really depends on the individual, because for so many people theor pet brings them great happiness. But, this is about me for purposes of the question, to I might seek a new home for the dog, but take my time finding the right home. The ideal would be a neighbor I could kind of share the dog with.
I would probably buy a condo or house in a maintenance included active adult community back in florida. Swim, play cards, play tennis, be in the sun and palm trees.
I would want to travel. I would take a few cruises, Greek Islands, Hawaii, and some cheapy last minute ones since I am living back in FL (parts of Latin America and the Caribbean). I like the idea of living in Italy for a couple of months, but while there touring a few more countries. Australia for a month during one of the American winters. Also, several long trips to areas of the US. Maybe 2–3 weeks at a time. The Rockies and New England come to mind.
I would spend time with some of my closest and dearest girlfriends, which can include a football game at my university during the right time of the year.
I would do everything I can to make my husband happy, and have harmony at home, while not ignoring my own selfish desires to live my life and do what I want to do while I can do it. I hope my husband is able to accompany me on my travels, is he retired?
I also would consider starting a business if I can do it only part of the year, really control the hours. If I know I am going to live only 10 years, I can do some spending, and risk taking. Maybe take a risk I was always afraid of. I don’t know, it seems unlikely, but it would interest me.