Just need some reassurance

LO is 7 months old. Saturday I’m finally going out for a birthday dinner with friends and my husband is staying home with our LO. LO is breastfed and receives 1 bottle a day at dinner time just to keep him used to taking a bottle. I breastfeed him about an hour before bed, but since I’ll be out dad will have to give him the bottle. My husband and I have gone on date nights and LO has done fine with the grandparents giving him the bottle, but when my husband has tried giving him a bottle in the past when I’m at doctors appointments he gets super fussy. I’m so nervous that LO will be fussy and refuse the bottle and then not sleep well. Please tell me I’m overreacting and everything will be fine 😅