keep your expectations low and in check,
that way you won't feel lacking or disappointed.

Here's an expectation for you tomorrow:
- I will do my best (not try, do or do not, there is no trying) to not argue with my wife who I gave a backrub to the other night and gave me one too, that's all I have for expectations, nothing more, no conversations about the relationship or feelings, no "what about me" talks, no fighting, just a simple day
- I will not defend myself in arguments that my wife starts just to test me, I know they're coming and I know she's testing me, I'll just smile and show her how easy it is to defuse these bombs she keeps dropping
- I will be a good dad to my children tomorrow
- I will be a good person for myself
- I will be thankful for the things that I have in my life and stop crying about the things that I don't have and the things I can't control

That's the short list, you can make it longer if necessary but you get my point,

LOW EXPECTATIONS!

"Sometimes I feel she is not confrontational just to make things easy. But easy is better than difficult"

You sound like you're trying to read her mind.
Let me give you a heads up on this, stop, you can't read her mind, whatever you're thinking, you're probably wrong.

Another thing, be happy, sounds like you might be hard to please sometimes, get rid of that attitude and be a happy guy, make yourself happy, happiness is a DIY job, always make sure you're smiling, looking and feeling awesome when you're around your wife & kids. ALWAYS!!!