Dear [Boyfriend's Name],
As you embark on this new chapter of your education, I just wanted to take a moment to tell you how incredibly proud I am of you. Your ambition and determination inspire me every day. I know there will be challenges ahead, but I have no doubt you'll tackle them with the same passion and drive that I admire so much.
Remember, I’m here cheering you on every step of the way! You've got this, and I can't wait to hear all about your adventures in learning. Let’s celebrate your achievements, big and small, together.
Love you tons! 💕
Yours always,
[Your Name]