A new study presented at the annual American Psychological Association's convention in Washington D.C. has confirmed that the old "once a cheater, always a cheater" line is in fact true.
*Gives up on love entirely*.
Seriously, this is not good news.
According to the study, which included 484 unmarried 18 to 34-year-olds, those who cheat once are three and a half times more likely to cheat again in later relationships.
But it gets worse. Apparently people who have been cheated on themselves are also more likely to be cheated on again in the future. Brilliant.
Kayla Knopp, the psychology graduate who led the study said: "We like to think that we can learn from our experiences and our mistakes, especially when it comes to love."
Though clearly, we really don't.
While our pessimistic side totally knew that the "once a cheater, always a cheater" thing was true, there was a small part of us that believed that we make one-off mistakes. Particularly when it comes to sex and relationships.
Have you been there? Can a cheater change their stripes and if you have been heartbroken by someone doing the dirty, can you see it coming next time? Or does paranoia send you over the edge?
Let us know your thoughts on Twitter @MyDailyUK
MORE ON DATING!
Why you shouldn't believe in soulmates
This guy's list of 'requirements' for a girlfriend is truly ridiculous
12 best items of furniture to have sex on
An apple a day could lead to better sex