It IS a personal failure, but go ahead, rationalize all you want.
Not everyone views marriage as a contract or as something that cannot be broken ever. The legal status of marriage in a jurisdiction != how people feel about and treat marriage.
> Divorce means your word is worthless, and that your own wants are more important than your word.
Giving your word on something isn't a clause that requires you to give up your own wants and needs. For example, if you married someone and one day they become abusive, you are not obligated to stay and take said abuse.
> It IS a personal failure, but go ahead, rationalize all you want.
This attitude is so unhelpful and smacks of a superiority complex.
Not all marriages are presumed to be "for as long as you shall live". Though they don't usually have a set term, civil marriages (at least around here) are not that tied to Christian values anymore.