Happy birthday to the smartest student I know! I’m wishing you all the luck in your studies, and the best of luck in life. Not that you’ll need it, of course!
My dearest love, on your special day I just want to wish you the happiest birthday possible and the same amount of happiness that you bring me every day.
Happy birthday to my everlasting number one! Friendships just don’t get any closer or any better than this, my friend! My very best wishes to you, as always!