This is what they told us in high school about class selection. If you have a friend who wants to take French as a language and you decide to take French as well just to be in the same class as your friend but don't really have any interest in French and your friend develops a passion for French and wants to study French culture/language in Paris and you decide to tag along, well..., who's life are you living? Somewhat of a similar analogy to yours.
So I'll give you some of the same advice you gave me. Do what YOU want. Follow your passions. Don't live her life. Now suppose you have the same passions, dreams, and goals. Do you really know her well enough to pack up and change your current life, unlike her boyfriend of 4 years, that seems more appropiate? May sound fun, adventurous, and hey, some risks pay great rewards. But do you trust her?
If there was any hesitation to the trust question I wouldn't be so hasty as to run off. Give it some time, think about it, collect some new information which should help you make a decison
What it all boils down to is doing what you want, doing what feels "right" inside, doing what your gut feels.
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