One-itis Vs. The One

What's the difference? There, at times, is a fine line.

One-itis . . . they consume your thoughts.
The One . . . they consume your thoughts.
One-itis . . . you will do anything for them.
The One . . . you will do anything for them, but they will also reciprocate.
One-itis . . . you give and give and give. they take and take and take.
The One . . . you give and give and give. they give and give and give.
One-itis . . . your frame is broke and you're AFC.
The One . . . your frame is intact, and the girl APPRECIATES that.
One-itis . . . you have no game on her, because you have no frame.
The One . . . your game works on her, and she enjoys it.

Other points sure to come. Plus, add your own.