Do you ever look at the girl next to you in class and wonder how she ever got married

I am about to go to my most lame class of the semester. It's my Anthropology class, I was required to take it for one of my GE, classes. I guess the thing that makes it so lame isn't the material, its the class itself. I'm talking students, here. This one girl in my class just doesn't get it. I want to tell her that when the professor pauses the lecture, this is not a sign to raise your hand and add a personal comment that is derived from some tangent in your brain, this is a time to ask questions, to gain clarification. This problem really wouldn't bother me except for the fact that she does it 3 times every class. These comments are so off the topic, I am embarrassed for the poor girl. I blush every time she raises her hand.
I can't seem to figure out how there are many nice people in this world that want to be married that aren't. How is that this girl that cannot follow a simple intro to anthropology discussion, got married in the first place. All you who read this (however few you may be) I'm sure have been perplexed by a similar course of action. It seems that these people have followed me throughout my college education. My first year of college I was in a college physics class, my good friend adrok and I found ourselves in this same circumstance. How was it that someone who says things like "it doesn't make sense in my head, but it makes sense" aloud got married? It seems to me that these really are troubling times my friends.