I left 1992 after three years in Taiwan, back in TW since 2004. It felt good both times.
People back home will think that your preference for Mandopop (or Tai-Oldies, ...), food etc. is a bit funny. The good thing though is that during your time in Taiwan you have learned dealing with people that think that you are a bit funny, so it doesn't bother you in your home country either anymore. Apart from that, you will perhaps look at "home" in a different way. Coming back here was great, too. But both times it was difficult to leave friends behind. It doesn't matter so much for the really good friends, because they do stay in touch, but there are always some good folks that you loose contact with eventually. Facebook doesn't help either, err...I think, I don't use it much maybe that's why. It is a bit different though these days, as you can make cheap international calls, or with facebook perhaps. I did loose contact with a lot of people here in Taiwan back then.