It’s kind of nice when a guy is close with his family. After all, a lot can be determined by how a man treats others. However, sometimes being close can be too close.

We’ve all probably had to deal with meddling parents, but what about a sister? Sometimes siblings can be overprotective of each other but for one Australian man, his sister was acting just downright creepy.

Jacinta, a 30-year-old from Australia, tells the tale of how her boyfriend’s creepy sister ended their relationship. Jacinta says she had been in a relationship with a man named Jack and initially found his closeness to his tight-knit family endearing.

He was a kind and sensitive man who “never had a bad word to say about anyone” and Jacinta fell for him. She understood that he and his sister, Mel, were close, but didn’t realize just how close at first.

Their family home had lots of pictures of the siblings together and Mel was always very supportive of Jack, but it soon became apparent that Mel had few friends of her own and often showed up at Jacinta and Jack’s dates.