It sounds like your ex wants to see if he still has control over you. Good for you for standing your ground. You have a lot going for you with your husband and son. No way should you let the ex in there and destroy all that. My advise would be to stay where you are at and please don't entertain these thoughts in your mind about the ex. They will turn from thoughts to wanting to act them out. Forget him as soon as possible. Don't mess up your life over someone who just wants to see if he can get you back. YOUR HUSBAND AND SON LOVE YOU AND NEED YOU!