I would try to get off the bottles, just for your own sleep's sake and also bottles are much more of a pain than cups. Start putting water in the bottles instead of milk. I suspect she'll quit being interested soon enough.
Hilariously, we can't even use our baby monitor anymore. It has two channels, and one of them picks up the neighbor's baby two houses down, and the other the baby diagonally behind us. It took us awhile to figure out what was going on...we would hear this weird crying in the middle of the night, and we would look in the crib and our baby was sound asleep. The neighbors certainly let their baby cry for a long time!
Also, with Easter coming up (don't know if you celebrate or not), my best friend's mom got rid of her bottles by telling them that the Easter Bunny needed the bottles for her bunny babies, so they set them out for the Easter Bunny and they were gone the next morning and they were actually excited to be rid of them!