I know all men aren't alike but..

I know from experience that all men aren't alike but I would really like to run into some that aren't all the same.  Explain to me why when my ex husband comes to pick up my oldest son for a 2 week visit in his home out of town why is it that I am not supposed to know his new address.  When he picked him up he said he would email me the address but then decided against it.  He told  me when he brought him back that  in the 8 years since  our divorce that I have only asked him for 2 things that I must be up to something sneaky if I want his address.  That because I have not asked for the address since he moved there must be some other agenda.  Leaving out the fact that he never bothered to tell me he moved in the first place and he only comes and gets his son twice a year.  He thought that since I sent his wife a letter 8 years ago when we first separated that I would do it again.  But what would I have to say about him now.  I don't even know the person he has become since that time and that was me then. I found it funny that  I "have been shown to have sneaky tendencies in the past."  I went to him as an adult and his only reason for not allowing me to know the address my son would be presiding at during the 2 weeks he was with his father was to bring up the past.  How long do you hang on to a bad break-up. Even after you have remarried.  He told me a few months ago that he was upset when he first heard that I was pregnant.  Because he thought I said I had planned on never having another child. I guess he was worried that I would tell his wife that.  No worries not interested in breaking up a "Happy Home."
Anyways seriously anyone have any opinions on how long it should take someone to get over a bad break-up.  Still am planning on adding another post to my short story but as you know the name of my post is SleeplessInCharlotte.  Even though I no longer have a job I still never seem to never have enough hours in the day.