Liberty bells

Adult daughter doesn’t want my boyfriend at thanksgiving dinner. She either wants me and my son to visit her out of state or will come to me only if it’s her, my son in law and my son. I’ve had other boyfriends at thanksgiving but not this one. Been seeing him over a year and he’s very nice but she doesn’t want him involved in the holiday. If he’s not invited he’ll be alone since his adult kids have other plans. I feel bad either way. What’s the right thing to do?