Why do people confuse obsession for love?

In my opinion love is meant to be freeing. A person who loves you gives you the freedom to express yourself but gives you constructive criticism without being judgmental. Obsession on the other hand restricts the object of its feelings to the point where they conform to what the subject of the emotion wants hence being suffocating. Since there is a difference between these two emotions, why do people still confuse obsession with love?

Why do people confuse obsession for love?
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