Re: my first experience....
I'd do the same, teach them if they were open to learning.
My urdu is horrible, but I can understand enough of the regular spoken Urdu, and speak some as well.
I wouldnt mind my hubby teaching me proper Urdu.
I'd also prefer someone who speaks Urdu just because I like having the ability of speaking in more than just one language, but its not a necessity for me.
I once met a really nice arab guy who also spoke Urdu. I thought that was cool. Is she open to learning it? Have you asked her?