Friendship Quotes in New Moon

How we cite our quotes: (chapter.paragraph)

Quote #10

[Jacob to Bella:] "…I’ll always be your friend," he said gruffly. "No matter what you love." (18.69)

Do you think Jacob would have made that promise knowing that Bella committed herself to becoming a vampire?

Quote #11

My best friend counted me with his enemies. (Epilogue.143)

Although Jacob counts her among his enemies, Bella still considers him her best friend. But doesn’t it take two people to have a friendship? Or, in other words, can you be friends with someone who regards you as an enemy?

Not to mention, it's interesting that Bella identifies Jacob as her "best friend." That seems to imply that, while Edward may be her true love, he's not her closest friend. What's the difference between being a true love and a best friend?