The American supermodel and the entrepreneur have had a low-key but adorable relationship since 2012. Their steady romance has resulted in two beautiful children, and they're often cited as one of the most stable and loving couples on Instagram.

The Biebs and Selena Gomez have had a tumultuous relationship, to say the least. After years of on-again, off-again romance, they've become one of the most followed and scrutinized couples on Instagram. Their 2017 reunion sparked a flurry of romantic getaways and PDA-filled moments, which ultimately ended in heartbreak. However, in 2020, they seemed to rekindle their romance, leaving fans hopeful for a happily-ever-after.

The model and the former One Direction member have had a long-standing friendship, which sometimes blossomed into romance. Their on-again, off-again relationship has been a subject of fascination on Instagram, with fans debating the status of their affection.