It's meme time again!

Stolen from anat_astarte :

Comment with a pairing and I'll tell you:

1. When I started shipping them
2. What I think their challenge is
3. What makes me happy about them
4. What makes me sad about them
5. What moment I wish had never happened
6. Who I'd be comfortable them ending up with, if not each other
7. My happily ever after for them

If you comment with a pairing I DON'T like, I'll tell you why.