There is always a time, when you have embarked on a new life (whether willingly, or in this case, not) where there is a crossroads, a turning point, a point of no return. Before that, there is still the option to turn back, to back out, to choose another path. When you pass that crossroads, though, there is no turning back. After the threshold is crossed, when you have taken a look at your new life, tested the waters, and forged on, your path is decided for you. 

You will forever be in that life now, too deep to claw your way out, weighed down with expectations and promises and debts and demons that no one else will understand. Oftentimes, it is a quest, or the choice to rescue someone's life, or a freak accident that you choose to handle a certain way - or even a promise, the most deadly of all trappings. 

Lady luck bears no love for me, and Fate has had it in for me since the start, so of course all of the things that could possibly happen to fully entrap you in that new life happened to me. All at once. Of course, if some brat had never been kidnapped, if I had never had that life-debt to fulfill... But then, my entire life has been a series of what-if and if-it-had-not-been-for _____. 

You shall see what I mean.