Disagree with Noir. Stay busy, and it'll keep your mind off of her. Eventually you'll realize how much fun your having..
Honestly she doesn't sound like she loves you if she wasn't willing to wait for you. If she did then she would crossed the fucking ocean in a paddle boat for you. Don't feel regret, if she didn't talk to YOU, it's not your fault. Why do you need to EXPLAIN your actions? If she had a problem about it, she should've told you. Simple.
Get out, have fun with friends, party, just don't go too overboard.
And definately get out there where you can feel APPRECIATED by some other good looking women.