by Mischalova at . Comments

We haven't had a good MySpace fight since Jenna Jameson and Jay Grdina.

So imagine our excitement when we discovered that Lindsay Lohan's boyfriend and his former flame were going at it online.

Loyal celebrity gossip followers know all about Breanna Tierney by now.

The ex-fiancee of Riley Giles supposedly spilled the sordid beans of Riley and Lindsay's relationship to The National Enquirer this week.

And, by the looks of this MySpace exchange, Giles is none too pleased about that.

by Mischalova at . Comments

Riley Giles isn't perfect.

Sorry to break the news, Lindsay Lohan, but you should know about the guy you're infesting with all sorts of sexually transmitted diseases.

Lohan and Behold

Us Weekly has learned tha Giles â€" a snowboarder Lohan met during her two-month stay at the Cirque Lodge treatment center in Utah â€" has a messy past.

In fact, he was engaged to Bree Tierney and simply "stopped calling [her] and never told her about Lindsay," Bree's mom, Tess, said. "She found out by seeing photos. It destroyed her."

Adds a second source: "Lindsay may be in danger with Riley."

Which relationship will end first: Lindsay Lohan and Riley Giles? Or Pamela Anderson and Rick Salomon?

Of course, Giles disputes this account. He told In Touch Weekly: "I broke up with Bree a week before I started dating Lindsay. We had dated for almost two years, but it's not like we were engaged or anything."

So, who do you believe: A guy willing to have sex with Lindsay Lohan? Or an innocent girl from Utah who just wants to be loved?