Most guys accidentally kill attraction before they even speak. They assume they need a bigger bank account, a better physique, or smoother lines. They miss the point.
Female desire operates on a specific set of psychological triggers. Break them, and you're invisible. Follow them, and you become magnetic.
I learned this the hard way. Years of freezing up. Getting friend-zoned. Watching other guys walk away with the girl I wanted. Then I discovered a set of 22 simple rules that rewired my entire approach.
More of us can mimick MRAs, by calling for a complete psychological overhaul of our species, the result of which will be that men get just as much latitude as the ladies do when it comes to producing crap like this
What happens, IN HER MIND, is that she comes to see you as WORTHLESS simply because she hasn't had to INVEST anything in you in order to get you or to keep you.
You were an interesting diversion while she had nothing else to do. But now that someone a little more valuable has come along, someone who expects her to treat him very well, she'll have no problem at all dropping you or demoting you to lowly "friendship" status.
Quote taken from The SoSuave Guide to Women and Dating, which you can read for FREE.
Have you tried any of the online mock USMLE's? Can you make it through them? Terms in medicine are pretty universal. I think you could do it. I would suggest you do it as soon as possible as its mostly book learning while you have it fresh in your head. That is if you think you might ever want to practice in the US.