Michelle and Barack Obama. Pic/Instagram

It was Michelle Obama's 54th birthday yesterday and former president Barack Obama sent her flowers and a card. While it might seem like a small gesture, Barack Obama's sweet gesture pulled a romantic string in our hearts. Here's what Michelle Obama took to Instagram to thank the former president and said,  "Thank you @BarackObama for the beautiful flowers waiting for me in the office this morning. You're my best friend, biggest fan, and getting notes and flowers from you will never get old."