She vows....

Throughout the ages, men have been trying to unlock the mystery as
to why their wives who accepted them as they were before they got
married, subtly and with determination began the quest to change
their behaviour and life-style once their vows were exchanged.

Finally, the riddle was solved. A social-scientist arrived at a simple
and logical conclusion.

When the bride, accompanied by her father, starts to walk slowly down
the long aisle, she sees the altar at the end and hears the choir
singing a hymn. Walking down the aisle, the conditioning process where
the brain absorbs these three stimuli: aisle, altar, hymn, begins.
She becomes mesmerized as she continually reinforces these
perceptions:

aisle, altar, hymn. . . aisle, altar, hymn. . . aisle, altar, hymn. .
and finally, as she stops beside the groom, the conditioning process
is completed.
She looks up at him lovingly, smiling sweetly and thinks
'I'll alter him.'