Try to reason with her

You try to reason with her that you can’t sell her forever but she is persistent. So you agree to think about it. The next morning you think all of it was a dream an forget about it. Two Month later you have already totally forgotten that you girlfriend wants you to sell her to somebody forever. Then on a late evening after you two were together partying she asked you if you would sell her or not and in your drunk state you agreed to do it. The next morning all of it comes back to you and you remember that you promised here that you would sell her. Because you know truly believe that she wants this and you also promised it you decide to go trough with it. The question know it how and to which person to sell her.