Do not think that thou shalt change him, daughter. No woman can ever change a man to become what she doth wish him to be.
Marriage will change him, aye - not all at once, not in the moment the priest pronounces thee wed, not in a month, not even a year, but gradually, little by little, he will change - as wilt thou thyself. Thou canst but hope that he will change more closely to that which thou dost wish him to be.
There is no law that cannot be twisted against its original purpose... no law that the powerful cannot corrupt to misuse - but that corruption can be purged, the twists unwound. Without the law, everyone is a victim sooner or later. If we defend the law; it will protect the weak more often than not.