Found: The day of the year relationships are most likely to break up.

Christmas tress. Lights. Presents. Family. Big lunches and break ups. All in the same breath.

Exactly two weeks before Christmas – December 11 – has been shown as D-Day for relationships. It’s the day of the year when couples are most likely to break up.

This was discovered by a group of statisticians from Information is Beautiful who trawled Facebook for breakup posts.

There are a number of reasons why this might be the case.

First off, family. And not just immediate family. Extended family. Great Aunts who try to pocket mince pies. Uncles who always, always drink too much gin.

Are you ready for your significant other to face your mother across a plate of Christmas ham? If the thought of this terrifies you, maybe they’re not so special after all. Cue: break up on December 11.

Mamamia Out Loud talk dating. Post continues below. 

It could be about gift-giving and generosity. Not to sound shallow, but if you receive a $20 iTunes gift card, and you’ve spent $250 on a cashmere sweater, it’s likely you’re not both on the same page when it comes to commitment.

The thought of gift giving can also be stressful. “If you’re not sure, particularly if you haven’t been dating for several years, a lot of people have issues about gift giving and how intimate the gift giving is,” Dr Dorree Lynn, a psychologist and author of Sex for Grownups told ABC News.

“They get frightened because they don’t want to put pressure on the other person, but on the other hand they don’t want to feel like a fool giving something and not getting anything back.”

The good news?

The bounce back is super fast. The same researchers found dating sites like Match.com reach peak activity on Christmas Day itself.