From correspondents in London, England, 12:30 AM IST

British pop singer Robbie Williams has reportedly been dumped by long-term girlfriend and American television actress Ayda Field over his obsession for aliens.

According to a friend, the couple called off their 14-month romance because Williams preferred spending his nights researching on aliens on the Internet, reports thesun.co.uk.

It had also been reported that the singer was too preoccupied working on tracks for his upcoming album to spend time with Field, but friends say Robbie hasn't even stepped foot inside a studio.

Instead, it was his nocturnal investigations into the paranormal that finally got Field packing.

'He has become more obsessed than ever recently with aliens. Some nights he would stay up till daylight and not go back to bed,' a source close to him said.

'Robbie is such a generous guy. He gave Ayda everything but he never seemed to take her out for dinner much like most normal guys dating a girl like Ayda would,' the source added.

Field has starred in US TV shows like "Will and amp; Grace" and "Days Of Our Lives".

(Staff Writer, © IANS)