Am I doing this wrong? 

Last night I was considerably lonely, so I thought I would go over and get the kids. They were in their underoos, and it was chilly, so I just told her Okay. Today while she worked her family has had the children. She never has a weekend off. Before our split I had the kids every weekend, and during the week at least two days she had homework, so again, trying to keep the kids at bay , so she could get that done. The other three days we both watched them, so I could clean up the kitchen, and she could wash clothes. Just everyday life stuff. Well today I picked up my son from her dads, and went and bought him a toy he wanted, and also, bought my daughter a gift, When I brought them home it was only about a half an hour before she got home. Her Dads GF is great, but she left them with me to get a break which she truly deserved, but when their Mom got home I walked them over.

I guess to make it a little clearer, Before we had the His and her weekends, On the night she didn't have the kids, she went to stay with a friend, and on her night, she left them with them to go again. Her car has broken down, and her Dad lets her take his spare. They gave her the money for her half, of the divorce, and are supporting, her to do as she wishes. She can  get away with murder, and they allow it. She has them convinced, that I did something to her. It's all about her. When will they see that they are being used, I mean I would take my kids the whole time, but I feel like I denied my children, by not keeping them. ARRRRGHHH! This is just a very confusing time!