Man proposes to his deaf girlfriend the moment she hears for the first time

When Andrea Diaz made her appointment to receive a cochlear implant at the University of Mississippi Medical Center, she knew her life was going to change forever -- but what she probably didn't expect was for it to be drastically different in more ways than one.

Captured in a tear-jerking video on Youtube, Diaz is seen working with an audiologist who's attempting to adjust to the electronic medical device that replaces the function of the damaged inner ear.

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Diaz becomes instantly overwhelmed upon hearing for the first time in her life, as she sits surrounded by her boyfriend and mother for the emotional moment.

The already heart-wrenching situation becomes that much more so when suddenly, after clarifying that the implant was working, her boyfriend leans over to pop the big question.

"Can you hear me...does it sound okay?" He continues, saying, "Baby, I wanted to make one of the first things that you hear, because I love you so much and you're my best friend. I wanted to make the first thing you hear me asking you to marry me."

The tears flow from there on out, as Diaz throws her arms around her man as she happily accepts.

Grab some tissues because this one is a doozy.