No one said you cant be surprised if you havent heard a name before thats natural but went further and formed "opinions about her as soon as she told me her name"
Thats not right OP in my book.
Beacuse on that basis, if I told you my real name, you'd probably do it to me.
Now Im gonna give you an example and I am in no way suggesting that this is the case with you OP but just try and understand where Im coming from:
My race is an ethnic minorty and I have had people act differently towards me once they have seen my face.
So to me, when I speak to someone over the phone probably before I give them my name, you do not get that instant prejudice, and in a way, probably naively I thought that it is almost safer to speak to someone over the phone, hearing I have a Yorkshire accent no different to any other race, it would be harder to judge or whatever.
But if you were to say my name, you could probably guess my race.
And thats why I ask where does this end, because even though you formed opinions of someone on hearing a name and was nothing to do with race, someone else (and I have seen this happen) can form racist, sexist, etc etc opinons about anybody.
And again I dont think this was what you did here, but you need to understand from someone who doesnt have a "mainstream name" that its just best not to form opinions without knowing the person first. Some people have been wrongly judged enough already.
No one said you were a terrible person, just be a little bit more broad minded thats all.