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What does “this time around” mean?

What is the meaning of “this time around” why not just this time . The full sentence is

This time around, she wants to get it right!

This time around means that it happened before and it will happen again? The context is a publication for the real relationship life.

The real question is why they did not use only "this time" but they used "this time around". What will be the difference between both ?