Is Liam Hemsworth dating January Jones?

Actor Liam Hemsworth has reportedly called off his engagement to Miley Cyrus and is secretly dating 'Mad Men' actress January Jones.
According to reports, 23-year-old Hemsworth has been spending a lot of time with Jones, 35, and is ready to take his relationship with her to the next level, reported Showbizspy.
"Liam is at January's house all the time. He brings her favourite wine, and they hook up. They have date nights in - they never go out, because they want to keep it a secret.
"Miley is in denial. She is desperate to marry Liam and make the relationship work. Liam is interested in seeing where the relationship with January can go. January is doing her best to keep Liam around," a source said.

Hemsworth and Cyrus started dating after meeting on the sets of "The Last Song" in June 2009.
In August 2010, it was confirmed that his relationship with Cyrus had ended but they were seen together a month later, and had reportedly reconciled.
It was again announced in early November that the couple had split but reconciled their relationship a second time.
Last year, the couple announced their engagement.