My best friend just lost his girlfriend, what do I do?

They dated on and off for 8 years and she just passed away this week. She was in the hospital for months before she passed and he was there with her everyday, being the best boyfriend ever. Now she is gone and all I want to do is make his pain go away. What can I do? Gift ideas? Anything!?
My best friend just lost his girlfriend, what do I do?
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