I don't mind getting wet in the rain as long as it's on my way home.
If I'm on my way home, I don't mind getting soaked in the rain.
I'm not bothered about getting soaked in the rain if I'm on my way home.
「帰り道に限って言えば雨に濡れてしまっても構わないよ」＝ I don't mind getting wet in the rain as long as it's on my way home. / If I'm on my way home, I don't mind getting soaked in the rain. / I'm not bothered about getting soaked in the rain if I'm on my way home.
ボキャブラリー
don't mind/not bothered ＝ 構わない
getting wet/getting soaked in the rain ＝ 濡れてしまう
as long as ＝ ～に限って
on one's way home ＝ 帰り道
イギリス 
