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
The one where we're not sure if Jesse and Jeana love or loathe each other
The one that beats a Facebook picture of a baby scan
US couple Phillip DeFranco and Lindsay Jordan Doty announce their pregnancy via an excitable YouTube clip in which they clarify (just so that their unborn baby knows) that the baby was very much planned: 'We removed the goalie a year ago'. Oh-kay.
The one that might end in divorce
A husband secretly films his wife throwing a tantrum in the car. 'Pleeeeeeeaaasse, get me some cigarettes!' is one of her main rants. There's shouting. And tears. It's not easy viewing, people, but that didn't stop 2.5 million people tuning in.
The one where a bride and groom sing their vows to each other
He strums the guitar, she bangs the drum. There are no words to describe their wedding song 'No Matter Where You Are' Just watch it. Our eyes! Our ears!
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.
