According to celebuzz:

Apparently, some lies are too attractive to ignore. Even the second time around.
This is RnB reports that Rihanna and Eminem have teamed up once again to record a “Love the Way You Lie Part 2,” a follow-up to the duo’s musical collaboration from earlier this year, which was included on Eminem’s Recovery album. The new twist on the song will tackle the female side of the abusive-relationship equation, and will be included on Ri-Ri’s upcoming studio album Loud, which goes on sale November 16.
On the new take (produced, like its predecessor, by British studio guru Alex da Kid), Rihanna—who was famously assaulted by her then-boyfriend, Chris Brown, following a 2009 pre-Grammys party—sings,

“Even angels have their wing cut schemes, and you take that to new extremes, but you will always be my hero, even though you lost your mind.”

Should be an intriguing listen.
Following its August 2010 release, “Love the Way You Lie” spent seven consecutive weeks at the Number One spot on Billboard’s Hot 100 chart, and is currently nominated for an MTV European Music Award. Time will tell whether this second go-around will duplicate that success, or whether Megan Fox and Dominic Monaghan will once again be tapped to play a couple locked in a tumultuous relationship in the accompanying video … or whether Taylor Momsen will feel compelled to crank out a cover of this version of the song as well.