I am not responsible for loosing this money. I am only responsible for the 5 year delay. But he surely is responsible, so he should care.
Btw. This is one of the reasons why Bitcoins are still no real competion to classic currencies. A real Bank would have refunded me those euros, dollars or anything... if I cannot trust my bank then it will not be my bank anymore.
The problem is that you are entrusting a third party with your money. And this third party is not regulated by anyone, so the chances of you getting scammed or hacked is much higher. If you used bitcoin like it's supposed to be used, within a wallet which you control everything including the private keys, then none of this would have happened. I don't think it's fair to blame BTC for this happening.
You are indeed not responsible for losing this money. He should refund you because when you used his service you expected that he owed you this amount no matter what.
He should care, but if he doesn't, then what you can do is launch a scam accusation and hopefully he gets tagged for shady behavior. But Tryninja already Pm'd him and based on the non-response you're getting, I don't think he's going to start attending to your case any time soon.