I start off noting that thanks to Kestrel I went back and gave a closer look to the Counseling Threads first, and Kestrel's right.
It was only slightly more than a week ago you were talking about some guy you were interested in.
Which leads me think one of three situations is going on.
1) This is a girl you just met, hormones are running rampant and you're confusing it for love.
2) This was a girl you knew well before hand, broke up with, had a break and very recently got back together.
3) You're in an open relationship.
Note: This is not including all the "What's your real motivation" stuff, this is me taking your post at face value.
However I'd be lying if I also wasn't concerned/curious was to what the motivations with you are, but for now since nothing in that regard seems to be concrete I'll go with face value for now.
If it's Hormones run rampant? Tread very carefully, teens and young adults tend to make silly mistakes that mess up most of their life for a reason. And hormones play a large (if not the largest) role in that. Be sure to be well aware of the feelings you have are a chemical reaction to having a new mate, and it should not be guiding your decisions. You should be putting your head upfront and using logic and reason to be guiding your choices, evaluate the situation, the pro's, the con's and choose what you know makes the most sense. Even if the choice pains you at the time. In fact, if this is a case of hormones and you only knew her for about a week... Then honestly I'd let it go. Online relationships are possible, but very difficult to maintain and it's not something someone is bound to be dedicated/loyal to if they only knew you for a week. And this next part might sound overly cold/cynical, but if only after a week she's telling you about being deported (even if born there, in which case I'm damn sure deporting her is illegal) it's probably a bluff. She's probably trying to tell she isn't interested, but instead of being upfront about it she's coming up with an excuse, as to either not have to deal with someone feeling rejected, or maybe she tried telling you upfront but it wasn't getting through.
If it's someone who knew before hand? Then that right there should tell you there's a bad track record between you two. If your relationship struggled to stay functional even when in person, it is not going to get any easier long distance. Trust me on that, I've been in an online relationship before and it ain't easy. This is something I'd be cautious of even if you were both staying local to one another, but because it might be turning to long distance? That's even more reason to let it go and try to find someone you get along with better.
If it's an open relationship though? Well, considering you had an earlier thread showing interest in getting together with some guy I'm assuming she is fine with you seeing other people (Hence: Open Relationship). So something you might want to look at is finding someone else, not forcefully mind you, and not rushed either. That might help you feel more comfortable/at ease. As for the girl in question? It honestly depends on how well you do you think both you and her can function without physical contact? Is it something you two can push on without? Or is it bound to cause too much pain and disconnect to work out? And don't give the "Yes we can make it work! I love her and she loves me!" response. That's coming right out of current feelings and emotions, which are going to be clouded given the situation. I want you to sit back, look at the situation calmly and rationally, just like you're an outsider to your own relationship and from that mindset decide if it's something the two of you can work through or not. If in the end you decide you two can't, the best option would be to peacefully end it, and agree to go your own ways. If you deice that you two can do it, then give it a shot. But take efforts to see each other fairly often, communication and talking to each other often is even more vital in an online relationship than one that's in person.
