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WP:FAIRUSE is just an alias for Wikipedia:Non-free content so we are in agreement on the relevant policy. As for how to edit the quote, perhaps somethin like the following:

""I was with her when she died. She left this world literally screaming at the top of her lungs. I was with her constantly, ... She was home for the last few weeks when the doctor told us there was nothing they could do anymore. Up until the last two days, she was still moving around. The doctor told us she will leave very quickly and her body will just start to shutdown. But when she left, she left the world with a bang, she left it how she lived it. She screamed her way out of here, literally. I truly believe her survival instincts were so part of her DNA that she was not going to go quietly or willingly. It was just the two of us hanging out [during the last days] she was very funny. We didn’t have to [talk] because I always knew how she felt about me, I was the love of her life, so the last part of her life we didn’t have to have these heart to heart talks."" 

or even

""I was with her when she died. She left this world literally screaming at the top of her lungs. I was with her constantly, ... She was home for the last few weeks when the doctor told us there was nothing they could do anymore. Up until the last two days, she was still moving around. The doctor told us she will leave very quickly and her body will just start to shutdown. But when she left, she left the world with a bang, she left it how she lived it. She screamed her way out of here, literally."" 

But if the consensus of editors at this page is to use the full quote as it now stands, I don't think that would be horrid or forbidded. I would say this is about as long as a direct quote should usually be, in my view. But each circumstance is different.  (talk) "