09/05/2007 at 03:00 PM EDT
Jason Wahler was in rehab
when rumors of a sex tape with Lauren Conrad
surfaced – so he's returning to The Hills
next week to set the record straight.
"The whole thing that Heidi [Montag] and Spencer [Pratt] said about the tape thing, its just so annoying," Wahler, 20, told Ryan Seacrest Wednesday. "They just need to shut up."
A fight was sparked
after rumors spread that Conrad had made a sex tape with ex-boyfriend Wahler – rumors which she believes Montag, 20, and her fiancé, Spencer Pratt, started. Conrad, 21, denies she ever made such a tape
"The most frustrating part is that they are such lowlifes that they have to come up with stuff to try and ruin other people," says Wahler. "It's just frustrating."
Speaking on Seacrest's KISS-FM radio show to promote his guest appearance Sept. 10, the recently engaged
Wahler denies the existence of a sex tape and says he regards Conrad as a close ally.
"Lauren was a good friend, she was always there to be supportive and stuff," Wahler said. "Things definitely get stirred up [on Monday night's episode]. You'll have to wait and see." Adding – when asked if he hooks up with her – "No, I don't."