We all know that living with someone brings a completely new level of understanding to the relationship. You learn how the other person lived when you weren't around, and it becomes as clear as day whether or not you're a compatible couple. There are other circumstances that conquer the same goal though, and one that I find very telling is vacationing together, from conception to completion. Being able to communicate and plan, cope with small spaces, handle jet lag, and deal with any blunders along the way can be incredibly significant in a relationship — I'm sure you've all heard a horror story or two about a couple going on a dream vacay, only to return broken up! Perhaps I put too much emphasis on travel compatibility, so tell me where you stand on this matter. Is it as telling for you as it is for me?