Musicoverdose is that bitch. She sometimes goes by Chose,Sin, Dark, Alli, etc.
She's often very self deprecating when it comes to her hobbies but she's far better than she believes.
She's honestly a really amazing person that sadly gets taken advantage of a lot due to her trusting nature. Despite this, she never fails to put a smile on any of her friends faces no matter how hurt she may be inside

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.