Do what you think is best. Sometimes people don't know what they want from a situation they know will happen before it does. Maybe she changed her mind? Or just wants to remain friends if possible?
I'm too hopeless to say no to something like that, but really, do what you think is best. It's not like if something long distance does happen that it's the worst outcome possible given you're still on good terms, and if that were the case you're not obligated to keep it going if it's too much strain. I'd go for it, but if you don't want to you shouldn't force yourself one way or another.