B.W.
I don't think it has anything to do with your husband giving her a bottle, but EVERYTHING to do with the bedtime routine. She has gotten into the routine of nursing before bed, of course its her favorite thing, way more comforting than a plastic nipple. My suggestion, you keep nursing her at bedtime, it will be the most comforting thing for her. Let your husband do her bath and put on her jammies so he is involved. ANd if he is willing to get up with her on a weekend, then let him, she will probably be jsut fine taking a bottle of breastmilk from him at any other time, just nto bedtime.
Both of my boys absolutely refused bottles at bedtime, they ONLY wanted to nurse. THat was fine with me, it was our time together.