Alongside a picture of himself and his wife holding hands across the table (my heart!), the former president wrote, "Happy birthday to the love of my life, @MichelleObama. You fill every room with warmth, wisdom, humor, and grace – and you look good doing it."

Speculation has grown on whether or not the two are facing rocky waters after the former first lady skipped out on two large presidential events.

Michelle Obama has shared a rare message from her and husband Barack after persistent rumors about their marriage rocked the couple.