I'll try to be as honest as I can, because I want honest opinions/suggestions.

Me: Almost 42. Married @~23, so almost 20 years. Married at the age I did, cause I wanted to be with a decent woman and have children, but didn't want them from a women who's old, nasty or been fucked by someone before me. We have 2;a teenage child and another to be a teenager in a few years. As you can guess, my life consisted and consists of work and whatever I make gets spent pretty much on house, wife and children. I make 125K on-book and more than that off-book.

Her: Same age - 1. Housewife. Never worked a job, until a few weeks ago*. I don't have any evidence of her ever being with anyone either before or during our marriage, nor have I seen hints of it, except for her overall bitchy attitude, if that does constitute a sign that is. Always performed the housework, cooking and taking care of the kids without complaining until about five years ago where she not only started resenting but constantly complaining and or yelling that I'm not doing anything around the house (even though I do help if she asks but I'm not proactive about it). Around that same time, started serious verbal abusive behavior and its only gotten worse. My response has generally been equally nasty and hurtful comments. Which as one can expect has resulted in the kids losing respect for both of us. At around that time, and due to the frequent fights, saw a lawyer who said if you want a divorce you will pay child support and alimony for a long time or maybe even life given she's never worked. *I put her through school, put much time and effort into that and helped her find a job that pays 70K which she recently started.

I have lost interest in her, even on the days when she is acting nice, due to her overall demeaning behavior and frequent fights. I'm contemplating a divorce but wanted suggestions on if and or how to approach it. A few months ago I brought up the idea of an amicable divorce with her and her response was give the house to me and continue to pay the mortgage of almost 40K/yr till full payment is made. I want to counter that with, I'll leave the house but continue to pay the mortgage, however, you cannot sell or rent any part of it out until full payment is made, at which point we each (including the kids who will be adults by then) own a quarter of it. I have a lawyer on retainer but haven't gone to the lawyer on this last one yet, so I'm not sure it's doable legally. Anyhow, that all being said, I want you guys take on this.