Force and Energy(this is really confusing)

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SUMMARY

The discussion clarifies the concepts of force and energy in the context of gravity and equilibrium. When a person sits on a chair, they exert a downward force due to gravity, while the chair exerts an equal upward force, maintaining balance. Upon standing, the chair does not ascend because it lacks an external upward force acting upon it. The chair's upward force ceases only when it is unopposed by the downward force of the person, leading to a state of equilibrium rather than motion.

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So I learned that if you sit on a chair, you are applying downwards force because of gravity, and the chair is applying an upwards force to stop you from falling down. However I thought that if you remove the chair, you would fall, but when you get off the chair, why doesn't the chair fly into the air since it has force? I am really confused, could anyone please help?
 
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There is nothing pushing down on it anymore, so it doesn't apply an upwards force anymore either. To be clear, the chair itself was pushing you up, so even if it did provide a force still the chair wouldn't go flying off into the air. That would require something pushing the chair up.
 

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