I Don't Have The Map Lyrics

Lyric discussion by stratocaps 

Cover art for I Don't Have The Map lyrics by Idlewild

This strikes me as a situation where Roddy has an unconventional and unpopular viewpoint on a particular (probably major) topic, and brings another person around to his way of thinking. However, the other person isn't comfortable with the feeling of ostracism that goes along with this viewpoint, and dislikes the feelings of isolation.

Roddy's way of saying "welcome to the club... the truth ain't always popular"

Of course it could also be about Gilligan's Island