My parents used to live May - December in the UK and Jan - Apr in the USA. They loved it but were careful to avoid becoming deemed resident in the USA. They did this for about 15 years and made good friends. The key was that their dates were regular and their friends on both sides of the Atlantic knew where they were when. I know many people who spend good chunks of time in their foreign second homes who fail to make real connections there because their visits are sporadic and irregular.