"I love you" VS. "I'm in love with you/falling in love with you." How are they the same/different?

Anonymous
Answer this personally, not for the general population:

When in a relationship with someone, it's normal to hear such words after some time. But does it have a different meaning to you personally if the person says it one way or another? What do you think it means when a person says these things, or do they all mean the same thing in a romantic relationship?

"I love you."

"I'm in love with you."

"I think I'm falling in love with you."

Do you see those as having different meanings personally, or do you think they're all the same? Please elaborate.
"I love you" VS. "I'm in love with you/falling in love with you." How are they the same/different?
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