Giving baby a bottle of breastmilk

Jaclyn
We have been trying to give LO a bottle of my pumped milk. Tonight was our fourth try l. We try every few days. She takes it and drinks it down but then wants my breast 10-30 min later for comfort nursing I think. My husband gives her the bottle and I leave and tonight I sat outside the whole time but she still cries after eating. What can we do to make this better? We are going away for a night 4-5 hours and I don't want to leave my MIL with a screaming child.