help. mommy advice

The Mrs
So I finally have all my custody papers for my son. And yes his dad got his visiting rights. And that not my problem. He needs to be with his son. Problem is during summer he gets him 30 days non stop of his choosing and I only get one weekend. And because of the fact that I took my son away from him for 2 months while we went to court (cause he get saying he was gonna run off and if never see him again) I know that during those 30 days he will keep my son from me and not let me speak to him just to punish me for what I had to do before. And I just wondering. All of you mommys who have situations where your child leaves for the summer how did you deal with it. I'm a total wreck just thinking of it. I don't want him to feel like I've left him behind. 💔💔💔