Soccer Dad Drama

Apparently, my ex signed my son up for soccer prior to my visitation on Friday. She called me on Thursday to tell me that he is in soccer, without consulting me prior, and has a game on Saturday during my visitation time. I had no plans for Saturday, so I agree to take him, even though it was very little notice and her inability to inform me could have caused him to miss his game if I did have other plans. When I picked him up Friday night, she did not send his uniform or his schedule, so I did not take him. She never called to arrange dropping off his uniform or even called to ask why he didn't make it to the game. I made sure to take him bowling, so he could do something, but I would have liked to have seen him play. Unfortunately, she's trying to set it up so that I look like the bad guy to him, and I have yet to receive a schedule, and she seems oblivious to the fact that we didn't go.