Good tries. But it actually is saying, "I'm sick of talking about it. Now would you do me a favor and get the hell out of here?"
Ahh.. That sounds much better. Cold and cool and non-challant.
セニセにたのまれて
運動会用のマーチに
アレンジしてたのち
Now, my major problem with this is the opening word, which doesn't seem to be a word. I can't find it, not anywhere. it is not in my dictionaries, not really online (except when used as a persons name), therefor I have made the assumption that セニセ is, indeed, a name. But this bother's me. if for no other reason I like to be sure, and I can't be.
line 1:
Now, I believe たのまれて means 'to offer assistance', thus line 1.
セニセにたのまれて => offer to Senise my help (assistance) (this is supposed to passive, right?)
line 2: 運動会用のマーチに => Game-day match (now I know マーチ can also mean March, but I am pretty sure it means Match, here)
line 3:
アレンジしてたのち
アレンジして => arranging/ and (right?, from アレンジする)
たのち, now たのち posed a bit of a problem for me, as I could not find it in my dictionaries and it resembles たのしい. I did find it online, however, and it seems to mean 'enjoy', so it might be a different form of たのしい.
Now, this passage seems to say:
"I should offer my help to Senise for arranging a game-day match" (but this doesn't utilize たのち, and definitely feels wrong, to me. It also doesn't fit the context of the story.
Any ideas on this one?