I am sorry for your hurt feelings. I personally would bite the bullet and say to dad that you are feeling upset and disappointed because he was so "cool" about your hand made gift. He probably is unaware that he has hurt you in such a way. I had a similar experience with my late Mum. She was totally unaware she had upset me and she wished I had told her before. All worked out fine there after.
It's a great quilt. Good luck, be brave, and get it sorted for both your sakes. Life is too short.