Post one of these cute, funny or sweet Valentine's Day captions on Instagram. These messages are perfect for couples, singles, friends and everyone else.

Promise Day, observed on February 11, is a unique aspect of Valentine's Week dedicated to love and commitment. Couples and friends make heartfelt promises, strengthening their bond.

Ed Sheeran's songs are full of romantic lyrics that perfectly express the feelings we often want to share on social media. Here are his best quotes on love to amp up your Instagram captions.