E! News - Miley & Liam split up.

E! News report on the Liam & Miley break up.
Marc Malkin says Liam has been reportedly hooking up with other girls, but insists it was after the breakup, and Miley and Liam have been broken up for a while.

Rumors have been that Miley has been hooking up with co-star Adam Sevani, but that's not true.
Mileys busy concentrating on her work and is very much single.