It is still hard how can i make it easier for me?

Here i go again, Iam in germany, my ex-boyfriend had to leave to the states, for the military, but he wanted to come back after 2 years, we were together for 2 years, now 3 weeks agao he dumped me, in a very mean way.......he just send me an text message from his phone, that he is done with me, a day before he told me how much he loved me and that he cant wait to come back to germany.

After he dumped me , i found out that he have a other girlfriend, allready 5 weeks.

It still hurts me a lot.

I tried to send him an e-mail, but he never answer one............i dont get a sorry and no why.....

Right now i have this moments, iam very sad ans i miss him a lot., what can i do.....i need help