FACEBOOK'S relationship status is set to become even more complicated with the launch of a fake companion service for lonely hearts.

Called Cloud Girlfriend, the service promises users with empty Facebook walls the chance to make their friends jealous.

How does it work? Well, it's not quite as dramatic as the plot of Weird Science, but it's almost as silly.

You describe your dream girlfriend to the company, which then creates a fake profile and starts sending pokes your way.

The instructions on the Cloud Girlfriend website read:

STEP 1: Define your perfect girlfriend.

STEP 2: We bring her into existence.

STEP 3: Connect and interact with her publicly on your favourite social network.

STEP 4: Enjoy a public long distance relationship with your perfect girl.

Digital media specialist Fi Bendall said the startup represented some troubling aspects of online behaviour and blurred the line between fiction and reality.

"I think it’s a pretty sad proposition to be honest," she told news.com.au.

"I looked at it and I felt there was such a real sadness around it in terms of human loneliness.

"Who on earth would want to do this unless it was done for fun?"

Ms Bendall said Cloud Girlfriend potentially put user information and privacy at risk.

"I think there are too many things that are wrong with it," she said.

"There are too many things from an ID protection point of view, a privacy point of view, using the net with best practice in terms of safety and online safety and security, helping young people to use it in a positive way and using social networking in a positive way.

"This opens the door to serious problems jumping up."

Though the website has yet to officially launch, the service is already in high demand.

Cloud Girlfriend have encouraged people to "register early" as, according to the company, demand is high.

"Due to high demand we are only able to accommodate a limited number of users," reads a warning posted to the site.

It's not clear yet whether the service will violate Facebook's terms of service, which include provisions against stealing other people's identities, but not creating fictional ones.

However Ms Bendall said she hoped it would shut the profiles down and had done so in the past.