Touchy subject

Bismillah

Ever wondered why Muslim's feel so touchy about religious topics said by non-Muslims? Why is it that I feel like being poked by pins and needles when I read Pamuk's White Castle?
My mind tells me, "He's just writing objectively."
My heart tells me, "Why is he writing about Islam in such a manner?"

Perhaps because Islam is part of a Muslim that when you talk about the religion, it is as if you are talking about the person him/herself. I feel that it might be the case with me at least.

Like if someone pointed out I'm short or made fun of the way I look, it's that sort of feeling.

Alhamdulillah.