Hear ya, Animal. On the other side of the world is another place like Puerto Rico called Guam. A Spanish colony for 300 years, Guam was 'acquired' by the USA in 1898 in the Spanish-American War(funny to call that a war). Now a 'possession' of the USA for over 100 years, there is serious talk in Guam of seeking independence. Of course, all this depends on how important the DoD thinks Guam is to American national defense, but a few military bases have closed down since the 80's - though the sub base, and USAF base are still there.
What keeps Guam above water, so to speak, is tourism. Japanese tourism to be exact. Many come there who can't pay the trip to Hawaii, and there are those who come to visit the old WWII sites too - as well as to give their respects to their ancestors who died here.
If Guam ever did become independent, then it most likely would enter into an agreement with the Commonwealth in Micronesia.
I wouldn't worry about any repercussions from the USA should Puerto Rico seek independence. If Guam ever did become independent, I'd seriously reconsider my US citizenship.
Best of luck to you, your culture, and your island