His body might not age, but he sure remembers being around for more than 17 years.
She's seventeen years old.Bella wasn't underaged at any point during the series. And even if she was there was no pelvic relations until they were married, because Edward is an incredible prude.
Hmmm... according to the age of consent laws the age of consent is Sixteen in Washington, not 18 so.
So yes, it's not pedophilia.
But it is still icky.
BUT the Catch 22 is this: one has to be careful for Washington has a "Communicating with a minor for immoral purposes legislation" which has been used to selectively prosecute individuals who communicate with persons under 18 for purposes deemed "immoral." The penalty for a 1st offense is up to a year in jail, and for a 2nd or subsequent offense (or for any person who has previously been convicted of any sex offense in the United States) the penalty is up to 5 years in prison. Just asking can, under certain circumstances, land the offender in jail or prison. As the purposes of all "Age of Consent" laws are not to "protect" children, but, rather, to protect the family, it is not at all surprising that many states that have ages of consent that set the ages below 18 have hidden within their codes other laws that can be used to set a defacto Age of Consent of 18.
EDIT:
And the law states the person must not be more than 60 months older or it IS molestation.
If Edward - or any of the Cullens, for that matter - wanted to cultivate the appearance of physical aging, they could have used cosmetic means to do so. The fact that they don't, and the fact that they don't change their listed ages on any of the various forms of doctored legal documents they produce each time they move to a new place - means that, regardless of whether or not time passes for them as individuals, they do not alter their lives dramatically to reflect said passage of time.
Therefore, Edward, for all intents and purposes, is a 17-year-old male forever; time might pass and he might gain new experiences and the accompanying memories of those experiences, but he still remains 17 forever, both physically and 'legally'. Because Bella is 17 at the time they begin dating one another, and because she is of legal age by the time they get married and consummate that marriage, there is no aspect of their relationship which would at any time fall under any of the definitions of pedophilia that have been presented thus far.
Whether or not your body physically changes, when a year passes you are one year older.
Says who?