What makes a relationship go viral? Whether it's an elaborate marriage proposal, a blazing public row, or a bonkers wedding dance, these couples shared the love with millions of YouTube viewers. And, oh, how we laughed (and cried a little bit).
The one where Jonathan and Ivory split up after five years, with the help of a pop video
We investigate the impact social media has on relationships in this month’s issue of Marie Claire, available on newsstands now. You can also download it straight to your iPad & iPhone, Kindle (just search the store for ‘marie claire magazine’), Nook or Google Nexus for only £2.99.