I think so.Forks wrote: Am I right???
IMO, the only one who knows how Bella felt(exactly) was Bella.
Edward can read Bella's thoughts, so he can't just try and understand... He knows a little. Because of Bella said(or didn't say) to him and what he "saw" in people's mind. Jacob, Charlie, Alice, the people of Forks... Everyone knew Bella's pain, but they didn't understand the full lenght of it.
Remember that Bella tried to protect others(specially Jacob) of her pain. She hid most of it when she was with others**.
Yes, Edward was apart from her. He knew a lot of what she felt, but it wasn't the same. He left for her own good. He could comfort him thinking she had a dangerless life(even if she didn't). He could always come back. Another comforting thing.
But Bella was left alone with her father to take care of, she thought the love of her life didn't want her anymore, that she was worth it(So low self-esteem is not good), Edward's family left her too. Her best-friend and sister, her old brother, Esme...
She missed them too. And then the threat to her life and werewolfs! As if she didn't have enough.
It hurts to think about it.
So what I say that even if he understands (almost) better than anyone, he can't know or understand it completely.
**I'm not thinking about her first week, though.