No, I would be pretty pissed about that
You aren’t the drama, your parents are lol. This sounds like they both undermined your boyfriend who is the child’s father not just some random boyfriend. There was a plan in place and it sounds like he was more than capable of taking care of his child and they felt otherwise. I think you need to go have a sit down with both of your parents just the three of you and discuss this. This seems like there’s more than them just wanting to help and I think you need to set the record straight that he’s a capable father and you didn’t appreciate them doing what they did and changing the plan
I don’t to be rude… but wtf. I would be pissed. And I think if this was us my husband , he would be pissed that my parents thought so little of him that they had to step in. The lack of communication and pushing a boundaries at that level can lead to really dangerous behaviors. It 100% sounds like they took advantage of your absence. As mothers, we should feel comfortable, taking a break and enjoying much needed. “Me time” this type of thing would make me nervous as hell