My dd is 22 months tomorrow. We have recently night-weaned for the second time. I am pretty AP and believe in night-time parenting but it took some screaming for dd to understand that I was no longer going to nurse her at night. She wasn't scared, she wasn't sad, she was just downright ticked off. That kind of screaming I can handle. I had her there in bed with me. We co-sleep/have a sidecarred toddler bed. By the third night of me refusing to nurse her she got it and didn't even ask. She still wakes up at night and climbs into my bed and will snuggle me a bit or play with my hair, but it's usually just 5 min or so and then she is back to sleep.
So really it's totally up to you to do what you feel comfortable with. I would maybe offer her a water bottle rather than milk and see how she reacts to that.
ETA: just realized how old this post was

I'm guessing you figured something out by now.