The Huffington Post has gathered some tell tale signs that could indicate if you should probably end the relationship as soon as possible.
Sociopath's have an oversized ego, lie on a regular basis, while exhibiting manipulative behavior.
Another red flag for your relationship could be that your partner shows a lack of empathy, remorse or shame and stays eerily calm in scary or dangerous situations.
Behaving irresponsibly or with extreme impulsivity and having just a few friends can be some other traits in sociopaths.
Other things that you should keep in mind while determining if you are dating a sociopath are that such people can be very charming, but only superficially, they disregard societal norms, and have no problem with maintaining uninterrupted "intense" eye contact.
--ANI (Posted on 26-08-2013)