Bodog Beat

Lindsay Lohan has broken up two relationships while in rehab. You go girl. (AP Images)

After breaking up the marriage of Dead Stays Alive frontman, Tony Allen has a wife Stephanie Allen in her rehab toilet sex debacle, Lindsay Lohan also successfully broke up a second relationship during her rehab stint.

Riley Giles, Lindsay Lohan's new rehab love interest was engaged when he met Lindsay. How did he break off said engagement? The "ignore her 'til she goes away" tactic is a highly effective dumping method used by high school boys and douchebags all over the world. It totally works too.

Apparently, Riley was engaged to Bree Tierney, a girl from Murray, Utah. Rather than formally breaking off the engagement prior to hooking up LiLo, Giles just ignored Bree 'til she went away.

Tess, the mother of Bree Tierney, told US Weekly that her daughter and Riley were engaged, but since entering rehab, "Riley just stopped calling Bree and never told her about Lindsay. She found out by seeing photos. It destroyed her."