My DP does all the pickups and dropoffs. The ex has a car and drives every weekend to her boyfriend's house 18 min away from us, but would never move her a** to ever bring or pick up SD. She pretends to be my DP's friend, sends him sweet messages and all, but when it comes to something concrete, nothing.
There were times when my DP would arrive and they wouldn't be home, because they were shopping, but nobody would bother telling him in advance. There were times when he would bring SD and the ex wasn't home.
And SD is used to it, it doesn't even occur to her to ask her mother to bring her to her dad, when she wants something, she asks DP to get her or bring her.
It was our toddler's bday recently, she wrote a sweet message to congratulate my DP, then a message saying how SD was dissapointed that she couldn't see him.
Yesterday was SD's bday. SD asked DP to bring her to see her mother, but she never asked her mother to come visit her. When her mother called, she told her to tell DP to bring her back early today (didn't ask about our plans) and when DP did it, she wasn't even f* there!
My DP also works a lot and we have a toddler whom the ex congratulates every year as if she cared about him, he's often sleepy while he drives and he also brings SD to her piano classes half time, picks up her uniforms, goes to her concerts and pays for ex's adult son from previous relationship.
He took this responsibility when they separated and I guess there's no way to change it now when everyone is used to it even when the kids are older. It pisses me off, but it's like that. When people can take advantage, they do it.