Perhaps she values what SHE thinks, which is something God definitely doesn't bother about, judging by the Bible where women are nothing more than cattle, property, brood-mares.
Children are not allowed to enter into contracts, as they are not deemed mature enough to realize the consequences. Whatever she promised at 13 has no bearing, therefore.
Did you wear a purity ring when you were a child, SupermanHere?
Why not? Your virginity was just as tangible and "real" as any woman's; the hymen is just a small crease on the wall of the vagina, and often break long before first intercourse. It can also be so elastic that it doesn't break at first intercourse, and some women are born without it. Virginity tests are therefore as stupid, pointless and invasive as fellatio tests would be.