
Being cheated on is horrible under any circumstances – but if your partner cheats on you with someone close to you, it’s almost unbearable.
That’s the situation a 26-year-old US woman has found herself in recently, after she discovered that Jake, her 28-year-old fiancé, had slept with her emotionally unstable sister Sara.
And the icing on the cake? Her mother knew the whole time, but didn’t tell her.
Ouch.

The woman, known only as brokenheartedsister, has told her sad story on Reddit and had pleaded for help in moving on.