Liam Hits the Gym, Seems Happy After Reported Miley Split (VIDEO)

It seems like the only "engagement" hunky Hollywood actor Liam Hemsworth has is a date with some dumbbells!

The 23-year-old was spotted hitting a gym in West Hollywood, Calif., looking happy as a clam — despite the fact that his relationship with fiancée Miley Cyrus is "definitely over," or so a source tells Us Weekly. (For the record, the couple hasn't confirmed the split.)