<human>: Can you condense the text into a few key points?

I've been married for about a decade, we have a child about the same age. My wife and I are thirty years old.  The real issue here is that I am very regularly questioning why I am married to my wife.  The basics I've been able to gleam is that I think I fell in love with her more as a matter of convenience/avoidance rather than out of some sort of relationship bliss.

We get along okay as friends but our beliefs/interests very rarely overlap.  I've never been super attracted to her, when we met she was a bit overweight and that has only progressed as we've been together.  I on the other hand am relatively fit, although to be honest I have put on a few pounds - still, I am called skinny by others.  (my wife has been mistaken to be pregnant as an example.)

  This is kind of all over, but the issue for me is that we don't really get along that great.  She gets easily upset over the littlest thing, if she is reading and I ask her a question I am "bothering her".  The little stuff that I see other couples partake in look like so much fun.  Cuddling for example is something that we have done but it's far and few between.

   Her default state seems to be negative -  My default state is positive.   Even though I am not perfect, I feel like I am a pretty damned good husband/father.  I feel entirely unappreciated, and while I shouldn't need to be complimented regularly to be happy, spending my life with someone who is not happy is a depressing future to look forward to.

My main things preventing me from breaking out of this relationship are a number of things -  We have a child, we have some debt, we own a house, I don't have a very future-proof job.

I've made lots of mistakes, one being that I've threatened to leave on past occasions but haven't.  I dislike goofy drama things like that, yet I am guilty of it.  It is easy to stay, it is and expected and consistent, but is it right?
<bot>: Married but unhappy, not attracted to wife physically or mentally. Economic reasons (and fear of being alone) prevent me from leaving.