Dear (name of girlfriend),
My heart is full of love and gratitude for all the wonderful memories we've shared this year. You've brought so much joy and happiness into my life, and I'm grateful to have you by my side.
This holiday season, I'm especially grateful for your support and understanding, as well as your willingness to help me achieve my dreams. You are the most precious gift in my life, and I hope you know how much I appreciate you.
Let's make this Christmas season the most magical and memorable one yet, and let's continue to build a beautiful life together.
With love and admiration,
(Rudolph