you wound me

In this context, wound is not the past tense of wind (as in to "wind up a clock", nor as in "the wind blows"). It is instead the verb form of the noun "wound", meaning an injury of some description.
this wound has nothing to do with an actual physical injury, it's more of an emotional wound

"Why, Jaime, my sweet brother," he said,"You wound me. You know how much I love my family."