Rejected Katie Waissel leaves the X Factor... but it's she who ends up comforting tearful Rebecca Ferguson

By DAILY MAIL REPORTER Upset: Rebecca Ferguson broke down in tears as she left the X Factor studios last night with booted contestant Katie Waissel As the competition heats up, many of the X Factor contestants have been battling to keep it together under the pressure.Many have fallen ill in recent weeks as their voices crack under the strain, and fears for 17-year-old Cher Lloyd's ability to