where v. when
do you say:
"i'm sensitive where it concerns you" or "i'm sensitive when it concerns you"?
Re: where v. when
Hello Mushu, welcome to Using English!
Both would be understood; perhaps the "when" version would be more usual, in this context.
You might want to play around with these idiomatic phrases:
1. I'm ADJ when it comes to NOUN PHRASE.
1a. I'm very sensitive when it comes to someone I care about, like you.
2. I'm ADJ where NOUN PHRASE is concerned.
e.g. (from Google):
2a. I'm pretty ignorant where technology is concerned.