No Kaki, you wont die, trust me.
This is an identical story that happened with one of my junior fellow except that the gul was in Karachi while the guy went to UK. They also used to be on Messenger, no direct contact. And then the guy started ignoring the gurl.. and just kept on doing it. Everytime when my friend called me to ask what to do I'd suggested the same what I told you. And I think now they are done for good!
Sad? Yes it is. I think we all dont want to discourage you but we dont want you to be non-realistic either.