1. When Derek saved Meredith from drowning.
2. When Owen told Cristina how much she meant to him.
3. When Arizona and Callie got back together.
4. When Jackson and April ran off together.
5. When Mark stayed with Lexie until the end.
6. When Arizona and Callie got married.
7. When Meredith and Derek adopted Zola.
8. Whenever Owen made Cristina smile.
9. When Jackson and April had their baby.
10. And, finally, when Derek and Meredith got married via post it note.
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