I'm so glad to hear the surgery went so well.
I know seeing her is going to be hard, but you need to stay strong for her. Like you said, her pain will be gone and she'll be feeling much better soon - try to focus on that when you see her.
Give her some gentle huggins for me.
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He is your friend, your partner, your defender, your dog. You are his life, his love, his leader. He will be yours, faithful and true, to the last beat of his heart. You owe it to him to be worthy of such devotion. -- Author Unknown