It's good that you are asking questions on this forum before you decide to spend all that money and go and live in Taiwan. Take a look at the threads here, not just in the Dating and Relationships section but also Life in Taiwan and you will get a better idea of whether it is the kind of place you want to go to !
Yes many Taiwanese do appear to be afraid of foreigners (but not afraid to point out the presence of a foreigner and make said foreigner feel uncomfortable !), but actually it is the foreigners themselves who are even more afraid of other foreigners. If that doesn't make sense to you now, it will should you go to Taiwan.
Finally I hope that you can get to meet some genuinely friendly people on these boards who would like to make friends with you; this could be difficult though because most people come to complain about their own relationships or philosophise about the dating situation in Taiwan and the opposite sex. You probably realise that from some of the answers you got already.
And watch out for a poster called Sandman. He really does play in a band but when he talks about swinging it's not necessarily the musical kind.