They might be very good friends on screen, but it looks like their off screen relationship might paint a totally different picture. Rumor has it that Tori Spelling believes she was "stabbed in the back" by her good pal, actress Jennie Garth.

Did Dean McDermott Cheat On Tori Spelling With Multiple Women? 

In the latest issue of In Touch Weekly's print edition on Friday, a source says that the two women have been at odds with each other because Spelling was unhappy that Garth got her own HGTV show called The Jennie Garth Project.

The insider says that Spelling was supposedly unhappy about Garth using their ABC Family show Mystery Girls as a platform to promote her new show.

Did Dean McDermott Cheat On Tori Spelling With Multiple Women?  

According to Gossip Cop on Friday though, the story is simply untrue.

An insider who is friends with both Garth and Spelling says, "That's the stupidest thing ever.. Tori's happy for Jennie... it's just a lie."

Meanwhile, Spelling has plans of her own as she is currently filming the second season of her hit reality show, True Tori.

According to CBS News last Thursday, True Tori will air on October 21 on the Lifetime Network. The show chronicles Spelling's marriage following McDermott's cheating scandal last year. The Canadian-born actor allegedly cheated on his wife with fan Emily Goodhand will shooting another show in Toronto late last year.

The site also adds that while McDermott will be back for the second season, it will focus more on Spelling and her personal struggles instead.