I am sorry you are here. I had some of the issues you are facing now. If you need to get evidence there is an easy and unsuspected way of doing it. If you use the Internet Explorer just go to the small star on the left of the browser click on it and then click on history. If he did not delete it you can see all the websites he is looking into by date.
Be calm and use the 48 hour rule people describe in this forum before you confront him. I did not do it and wish I had but I did not know DB by then. The good news is that you found this website right at the start of your suspicious so you can plan your moves ahead.
