breastfed baby now refusing bottle

Hey there. Wondering if anyone has any tips. I mainly only breastfeed my now 3 1/2 month old. She would get an occasional bottle of pumped milk and has never had an issue before but today she refused it from my husband (I never give her the bottle n wasn't even home). She should've been hungry because it had been 3 1/2 hours since she had eaten. I changed the nipple to a faster flow, still didn't fix the issue. I'm sure it's because she doesn't get it often. Sometimes 1-2 weeks in between bottle feeds. Any hints on getting her to take them? Maybe giving a bottle once a week even if I don't need to, to get her used to it?