She made a huge mistake letting her relationship with Timbaland crumble. Tim thought she wasn't grateful for all he did and then they ended up going through some legal drama on rights and whatnot, especially after 2006 and her hit album Loose. He got married in 2008 and she couldn't make the wedding, and they basically didn't speak for years after.
She kind left the limelight by releasing a spanish language album in 2009, it was actually a hit, she won a Grammy, but people forgot about her quick because of the gap in time. She decided to go back to pop music but her 2012 album fell flat as did her album she released on her own label in 2017. A bit of a shame.