Nathan Cleary looks glum as he jets into Sydney Airport alone after saying goodbye to his girlfriend Mary Fowler in Perth

The long goodbye: Nathan Cleary and Mary Fowler bid farewell before taking separate flights out of Perth Airport... with sporting power couple likely to spend months apart

The adorable detail that proves Nathan Cleary and Mary Fowler have taken their romance to the next level... so can YOU spot it?

Nathan Cleary and Mary Fowler's cute celebrity nicknames revealed after sports stars confirm they're a couple with very romantic display