Honestly, I think this is one where you have to 'just do it' if it is important to you as a family. I mean, if you are going to BF right before bed at this point, and it's really not important that she should be put to bed by daddy, then there's no harm. If it's important that she should take a bottle of expressed milk and daddy do bedtime, it's best if you just stay out of the picture altogether, it will be confusing and frustrating for her if she knows you are there but won't do the bedtime routine.