Didn't you say in your previous posts that he asked you not to contact him? If I remember correctly he got weirded out when you were with him the last time but wasn't forthcoming in why he acted strangely. Could it be that the only reason why you want to go there is because you don't have someone to lean on while you are hurting? Take care of you. Stop torchuring yourself. It sounds to me that you have idealised this guy but haven't balanced in how it ended. Let him go and don't go to Germany!
We are what we think. All that we are arises with our thoughts. With our thoughts, we make our world.
“When I let go of what I am, I become what I might be.” – Lao Tzu