What's "itsumademo" and "zutto"?
I think I wrote it right.

Question

What's "itsumademo" and "zutto"?
I think I wrote it right.

Answer

"itsumademo" = いつまでも
It has a meaning of "forever" or "indefinitely". Here are some dictionary references: 
http://wordreference.com/jaen/%E3%81%84%E3%81%A4%E3%81%BE%E3%81%A7%E3%82%82
http://eow.alc.co.jp/%E3%81%84%E3%81%A4%E3%81%BE%E3%81%A7%E3%82%82/UTF-8/

"zutto" = ずっと
It has a meaning of "since then" or "ever since". Here are some dictionary references: 
http://wordreference.com/jaen/%E3%81%9A%E3%81%A3%E3%81%A8
http://eow.alc.co.jp/%E3%81%9A%E3%81%A3%E3%81%A8/UTF-8/

Good day. / じゃね。