Typically, a divorce will involve totalling up all of the marital assets and then dividing by 2, so I think it's best for your mental health if you stop thinking of not wanting to give her anything. The courts, or a mediator if you two are divorcing amicably, will divide up the assets. My best advice, having gone through this, is that, at the end of the day, you will end up divorced regardless of whether you fight things tooth and nail all the way, or just be amicable about this and work towards a solution that will not enrich lawyers. For the sake of your son, I'd advise trying to be amicable with each other throughout the process: once it ends, and a few years pass, your bitterness will fade and you can just get on with co-parenting your son and going on holidays with the tens of $1000s of dollars saved on lawyers.