It doesn't help that in this country it's almost taken for granted that when love dies a marriage should too. It's my own experience that love, like faith, can wax and wane a bit as one goes through life. Attention can wander. Hurt feelings can build up. Depressions and disappointments and catastrophes can get in the way. Do you stick it no matter what, or not? It may seem simple to you now, but check in with us again twenty years into your marriage and I suspect it may not seem quite so cut and dried...
However, I also tend to agree that Trip wouldn't be the first to end it, because he doesn't think of himself as someone who'd just ditch that commitment. No, first he'd try to provoke HER into ending it, just like this guy did.

Damn, I wish I had time to write fanfic right now.