London, April 30 (IANS) Pop star Lady Gaga, known for her bizarre ways, refuses to share a room with her boyfriend Luc Carl once in a week.

Gaga, who is accompanied by her boyfriend on tours, insists on booking separate hotel rooms because she thinks sharing a bed every night would damage her creativity.

‘She calls it her 16th century monarch night as she doesn’t always allow Luc to sleep in bed with her. She just summons him when she needs him,’ contactmusic.com quoted a source as saying.

The eccentric singer reportedly shows signs of ‘crazy’ behaviour when she is stressed.

‘She often suffers bouts of crazy behaviour when she is tired and stressed. It’s certainly happening now. For example, she always has 28 tour buses, 140 staff and an even number of tables, chairs, glasses and plates in her backstage area,’ the source said.

‘She also insists on having her own crockery so she can be sure that no one else has used it and will not sit on a chair that anyone else has sat on before. She even has someone on hand to pour her drinks because she thinks pouring for oneself is bad luck,’ the source added.