A fatal attraction 

An attraction between an individual and someone/something that is so strong, the individual lacks reason and logic in their thinking when dealing with their attraction. The subject is often someone/something that will have a negative impact on the individual.

She knew that he was bad news, but it was a fatal attraction.

A fatal attraction by Redwork September 24, 2005

A fatal attraction 

one whom is willing to put not only their life at risk for a fictional relationship, but everyone elses around them(including the partner)

Self abuse-to put a partner in jail (setting a partner up if other partner the choose to brake the relationship off, inorder to punish the partner)often resulting in incarceration

A fatal attraction by Miss Harris October 18, 2003

A fatal attraction 

A stalker that's simply obsessed with who it's stalking.

A fatal attraction by Mr. Terrence L. Trezvant October 15, 2003

A fatal attraction 

When you sleep with someone only to wish that you could kill yourself in the morning.

Don't do it, bro. She's a fatal attraction waiting to happen.

A fatal attraction by Anonymous November 4, 2003