Learn what "i don't know" means, when people say it, and how to use it naturally in English.

This is a strong way of saying the other person is deeply important and hard to replace.
From One Night Stand, Episode 30
Someone is expressing how dependent they feel on another person.
Use this in emotional or romantic situations to show gratitude and attachment. It can sound intense, so it is not ideal for casual use.
Scenes unlock real expressions as you watch
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