....Yah i can't really say what you should do here...nothing from me...at all....
Alright heres what you do.
Take her out to somewhere isolated but with enough supplies for 2 people to live for about 5 years, 1-2soft beds and a doctor.
Shout out "Squirrel!" and she'll be distracted for just enough time for you to take a blunt object and hit her in the head with the right amount of force in the correct spot of the head, so that she'll be in a coma and wake up with no memory of much of her life (just her name, family and how to breath and eat). Tell her that you were her boyfriend and that you both were having a picnic in the woods when she tripped and hit her head on a rock.Take 4-5 years to develop a bond between the 2 of you, as you try and restore here former memory (except the lesbian part)and when you 2 are bounded...well have fun!