Let's say the War of Cuban Independence concludes succesfully before the US has a chance to intervene, or the war goes as OTL but the US decides not to intervene at all. What would relations be like between independent Cuba and the US? And would Puerto Rico be joined with Cuba in a single country, or become independent on its own? Also, how would no Spanish-American war effect the politics and culture of the US, Spain, Cuba, and Puerto Rico?