Is Ashlee Simpson cheating with her Melrose Place co-star? This is what Star splashed all over their pages this week. The man in question is Colin Egglesfield, who is a former Versace model and plays a chef on the series. How scandalous! Part of us is happy for her, though. Don’t know why…

more Ashlee and Colin after the hop…

Star says the two have been spending a lot of time off set together (via Celebitchy.com):

“They hung out together for hours. She giggled nonstop and did the whole hair-flip thing. If I were her husband, I wouldn’t be happy with the way she was acting!” According to multiple sources, he’s not. Pete is very jealous of his wife’s obvious crush on the 36 year-old former Versace mode. He recently caught Ashlee online Googling Colin and flipped, says an insider. “She claimed it was just research, but Pete wasn’t buying it. They got into a huge fight over it and didn’t speak for days, and then he went on tour.”

Actually, on second thought, Ash should throw Colin to her sister Jessica.

Photos: Bauer Griffin