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We're sooo confused about what's going on between Miley Cyrus and fiance Liam Hemsworth, but there is one thing he's been committed to through all of this ... the gym!

On Monday afternoon the Aussie hunk was snapped post-workout in Los Angeles, and he didn't have much to say, but then again, how can you top that awkward grunt/moan he gave us the other day when asked about his relationship status?

Over the weekend Miley shot her music video in L.A., and on the first day of shooting she was wearing her diamond engagement ring, but on the last day her fingers were bare. What do YOU think is going on with these two?