SO now i feel pretty angry, but also like i made the wrong decision?

If your ex wanted to see his child then he should make the effort. He could come visit his parents anytime they had the baby. You made the right decision, no baby should be away from their mother for a whole week. Next time you talk to him or his parents let them know you dont mind if he sees his child, that you actually want him too! but it needs to be a weekend visit in your own country.