Traditionally infidelity meant being involved in a physical relationship with some one other than your spouse.  But in this electronic age of cyberspace that definition could be expanded to include "online infidelity" which can hurt just as much. I think that you should speak with an attorney about the issues you have here and what your options are given the circumstances.  Your state law will govner the issue of spousal support (which seeme unlikely if you can support yourself and make more money that he).  Also know that generlly states do not take infidelity in to account when distributing marital assets unless one of the parties dissipates assets on their paramour.  Good luck.