Your husband probably did not want to answer your questions as most people do not want to be confronted with discrepancies (saying one thing and doing another). Too many times when we stay in a relationship that is ended it can become very unhealthy, as one party or both can become inappropriate and disrespectful (talking to you like a child in front of your son). Keep in mind, others can only do what we allow them to do, as long as you engage in the "back and forth" with him there will be no end to games, lies, and misleading information. Choose to remove yourself, and engage with him only when necessary. Try to keep the conversations strictly focused on your children, remain in the here and now (avoid issues of the past), and moving forward. By playing his games you will remain locked in this unhealthy cycle with him.