Iris, I think you need to post in a different forum. Why don't you try the forum I'm thinking about leaving'. you will find people there who are thinking about divorce themselves aswell. They might help you form a decision.

I'm not really clear on what's going on with your sitch. Do you still love him? Now please don't take this the wrong way but I need to ask... Why don't you want him to see his parents? How would you feel if he denied you to see your parents or family? He might feel rejected and hurt in his pride that you do not want his parents to visit you. And from a different perspective...my 3 year old doesn't have a granny because my mom and DH mom have passed on. Don't you want your 22 month old cutie to build a bond with her grandparents?? Even if you don't like them very much they still are family....
Hang in there and please post in the forum I suggested, you will get a lot more responses and help.