Let go and move on.
She's back with her ex, and yup, ur game is up.
The whole issue here is tht u are here, and she is there, and her ex is there.
Simply put, she liked u, and she love her ex. See the link now?
The boat sank and you, the raft, floated by.
Now the boat floated back up. What do you think will happen to the raft?
For me, I would do the pillar of support for her, it is nothing but I love that girl. Love doesn't mean you need her to be at your side, most important thing is she happy.
Well if you want to be direct, ask her to straighten out her mind, make her decision (you or ex), then call you back. Till then, don't bother contacting her.
Forget about assuming the outcome for now, things could be rather complicated on her side (or mind).
things are not looking good for you.
On the bright side, anytime her bf is gone, she will come back to you again. That could be in between bad quarrels,when she couldn't contact her bf,when she's troubled, temporary breakups etc.
I'm in a LDR as well, and I have to say that you're so much better, atleast you're able to travel there and spend that few days with her, while for me we survived on webcam, msn and emails.
So look on the bright side and be positive, I've to say LDR requires lots of faith and trust, also its a test of endurance for both of you. Did you tell her about your insecurity and did she give you any re-assurance regarding that?
You can possibly expect all the lovey dovey stuff throughout your relationship thus its more of the mutual understanding that you both have for each other.
Wish you luck! All the best in your LDR...