Congratulations on opening your passions and making them real. Your spouse is on his own journey. You have your boundaries and your growth, what's healthy and precious to you. Whoo hoo!
I'm sorry to hear that your dad is feeling uncomfortable. Yet each day, week, month, year, decade you have with him is a joy. Focus on the good, empathize on the tough and be the person you are.. the reflection of your parents years of caring and upbringing. Telling your parents that you appreciate all they've done for you is something they'd never ask for but an incredible gift.