French language Q&A Forum

J'ai acheté deux paires de chaussures, mais ________ me va.

I wrote "ni l'un ni l'autre ne", but it was rejected. It says it's "ni l'une ni l'autre ne". Now, I understand we're talking about PAIRS of shoes, not just shoes, and "un pair" is masculine. So is this an error?

In the lesson ‘Que = Whom, which, that (relative pronouns)’ an example sentence is given as:

‘La femme que je dessine’

An example sentence from this lesson is: ‘Le chat, auquel tu as fait peur’ OR ‘Le chat, à qui tu as fait peur’ 

I’m struggling to understand why is ‘Le chat, que tu as fait peur’ is not used?

Thanks