We just removed the bottle and swapped it over with a cup. As she was only just 1 we still cuddld her like she was having her bottle, then over time we just removed the cup of milk before bed and replaced it with milk in a cup thru out the day. Now she is nearly 3 she only drinks water and a little bit of milk and we have her drink bottle full of water just lying around so she helps herself shen she's thirsty. So no easy solution but if you can explain that she's a 'big girl' and maybe take her shopping for a new cup for her milk it might make it easier for you both?