[quote name='Ag_SurfR']...what i need is to make some sort of connection with someone else or a group of other people. the problem is that it's difficult to take the steps necessary to do so when i was/am so emotionally invested in this other person.[/QUOTE]
Believe me, it's far, FAR more difficult to NOT "take the steps necessary" to move on with your life than it is to take them. They SEEM "difficult" only because you're not used to them.
Buckle up and prepare to live your life again.
You have two choices: wallow in a depressed and crappy mood, or act to get into a better one. I don't consider a third option, "trying to get her back," as a different choice than wallowing, because everyone here will agree that "getting her back" is not only NOT an option, it's a terrible one.
That this girl left you "by surprise" - I question this. Were there no "signs" that things were falling apart? Never any discussions of issues the two of you were having and attempts to resolve them?
If she truly left "by surprise," she deserves absolutely NOTHING from you. Nothing at all. Not a smile, a text, a phone call, nothing. She certainly doesn't deserve your car or your help! This constitutes an ambush of epic-relationship-proportions and is unforgivable. She's basically saying: you're not worth my time, you're not worth working this out, whatever issues I'm having with "us," I have checked out and am abandoning you.
This happened after 9 years?
We call this betrayal.
From what little detail you've given, it seems pretty clear that you've put your life on hold in many ways - either for this girl and/or for your degree. I'm guessing it was mostly "the girl," because as you've said, not many friends, family lives far away. So...social life pretty much in the gutter.
Except for her.
Well, it's no surprise you're holding on so tight. She's your anchor. Or, rather, she WAS your anchor. Just remember that SHE cut the chain - and now you're floating aimlessly. So much so that you can't resist talking to her, thinking about her, doing things for her. And every scenario involving you getting into a better place is rife with self-made excuses and "problems": all the time studying, no friends, no family, not enough time.
But dammit, it's your friggin' ship. Find your center. Determine a direction. And go for it. You obviously have enough time to post online. Get a hobby. Go to a coffee shop. Talk to people.
Keep thinking about problems and I guarantee you'll keep having them. Keep thinking about missing her and you'll what? Right! You'll keep missing her.
Fact is, she left. AND she's lingering, which makes her an even worse person.
Why, oh why, would you ever think you couldn't find anyone better than her?
Person you're not thinking well of is yourself.
Understandably, you're probably wondering why you didn't see what was wrong, that she was going to leave, or you're not good enough for her, which is why she's rejected you, etc., etc.
I'll help you out here: she hid it from you. And that, my friend, is not someone you want to be with. Ever.