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\"Petunia it is not the amount of time together, but it’s affects on the soul,\" he added. \"You affected everyone who met you. You’re forever my old lady😭😘😍 I miss you so much already, sleep my sweet angel.\"

Cuoco also commended Paws For Life K9 Rescue for \"initially saving\" Petunia.

\"We were so honored to love her in her final days,\" she wrote.

View this post on Instagram

A post shared by Paws For Life K9 Rescue (@pawsforlifek9)

Cuoco often uses her platform to support rescue organizations and encourage fans to consider pet adoption.

She features puppies up for adoption in weekly '#muttmonday' posts.

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