Does God call us to raise children in a miserable dysfunctional relationship called marriage?

The relationship between me and my wife was such that it was complete misery for her and for me. There was nothing mutual about the relationship, no balance, no respect, no love, no trust, no anything but alot of sex. What kind of witness do we display to our kids when the situation is like that? Are we not telling our kids, this is what marriage is all about, this is what happiness is when your married? I have three beautiful sons, but I didn't want them being raised in that environment, I didn't want to portray my misery and anger and unfulfillment and resentments toward my wife onto them, the innocent parties to a distaster called marriage. I've not divorced her, but it's good nice to be separated from her, I asked her not to use the kids to vent her emotions of our relationship, however, that hasn't happened. She only cares about herself, and has been using my kids as her theropist to cope with our situation. Anyways, God is good and has lead me to this point and I know things will progressive get better, but I also believe the worse thing I can give my sons is a dad in misery. Ok, I have to go get on a plane. Oh my wife isn't allowing my sons to speak to me, but at the same time she's telling them I've abandoned them.

Keep me in your prayers,