Ellie Taylor, 18, nominated the three-year-old bunny for a PDSA Commendation for his devotion to her while she was going through a tough time.
Ellie, from Rowley Regis, said: "In 2011 I lost my granddad suddenly. I was also having problems at school and as a result I wasn't able to cope with things.
"I became ill with an eating disorder, anorexia, and had to come out of school. I was getting professional help for my illness, but still felt there was something missing in my life."
Her mum, Joanne, decided to bring home rabbits Roary and Tiger, hoping the responsibility of caring for them would help Ellie get better.
Tiger died in 2012, but Roary was there to aid Ellie's recovery.
Ellie said: "Because I couldn't go to school, I spent every day with Roary and Tiger. They helped ease my pain and slowly I began to feel like myself again. It's amazing that animals can make you feel like this.
"Roary in particular, has changed my life. He's my best friend, companion and happiness. Without him, I don't think I'd be the person I am today."
The incredible rabbit was presented with his certificate by PSDA's senior vet, Ian Fleming. Ian said: "At PDSA we understand the strength and power of the bond between a pet, be it big or small, and their owner.
"It is clear that Roary has had a massive impact on Ellie's life and is a worthy recipient of the PDSA Commendation."
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