Go to her house and eat small dabs of her mother's cooking, and make a face at her like you have a chicken bone stuck sideways in your throat. Comment on how dry the turkey was or how poorly the steak was done. Then proceed to "text" at the table (when you're actually posting on CP!) No way she'll snoop and see what you're doing, right? Then offer to buy wings for everybody at the local sports bar.
Yep, that'll set you free...