I have a very long time relationship with her almost 5 years now. I have gone abroad, and she tells she have lot of stuffs to do, and not free even talking in phone. She used to came online in Skype for a few, months ago, but now when I call her once in a week, or twice in a week she is kind of ignoring. Help me out friends.

You have been together long enough to arrange a time to call when she isn't busy. Is there a time zone difference here also?

Talk to her about it if it's really bothering you that much because she might not even realize what she's doing is hurting you.