According to the viral “bird theory” on TikTok, a sweet and loving partner will show some interest and start asking questions ...

Like clockwork, every few years viral relationship “tests” or “theories” will resurface online, prompting renewed discourse ...

Social media users praised the couple's ambitious project in the viral clip, with one calling it "a clever idea." ...

Every now and again, a new TikTok trend picks up pace – and some are aimed at putting relationships to the test. The latest is the curiously named "bird theory," and it’s just as strange as it is ...