DD is 5, her dad and I have been split for 4 years now. We have always had quite a good relationship really and have been able to do things with DD the 3 of us. He can be a bit useless (unorganised, forgetful etc) so I usually have to spoon feed him how to be a good parent.
He has her EOW and despite me being on his case for 3 years to spend more time with her as she misses him, he has done nothing about it. More recently, his mum (retired) offered to have DD on a regular day each week as we had a dispute with her nursery. This went on for about 3 months and DD really improved. Much less crying at bedtime about missing him etc. So I said I know the agreement was to cover me until we start school, but I think considering it has had such a good impact on her then perhaps we need to arrange a regular day that you can collect her from school and take her back the next day as an addition to your EOW.
He has bought a pub since we split, so he is basically saying that he couldn't possibly have DD any more than he can because of his pub (despite the fact he's self employed, his mum is retired and his sister, who lives with, is on a career break). He also says that as he lives 40 minutes away from the school it would be impossible to take her there. He said maybe some afternoons he will pick her up and bring her to my house and play for the afternoon instead 
Anyway. This has all been brewing up in me getting more and more upset with his behaviour but trying to keep up our friendship for her sake.
But this morning was DDs first day at school. She was so excited and he didn't show up because he overslept. I watched the excitement drain out of her when she realised he wasn't coming. The teacher ended up having to take my confident little girl out of my arms and drag her into school kicking and screaming. I was crying, she was crying. Just rewriting this now is making me well up! It was awful.
I have decided that I will leave communication lines open for anything to do with DD, but I'm blocking him on every form of social media. And while I will never let on to DD how I feel about him and will still continue to be friendly when she is around, I don't want anything to do with him apart from where she is concerned. I am done having to remind him how to be a father even though it makes my little girl happy when he's there. have never been so furious with him in my entire life and that is saying something.
My friends agree that I need to keep things very straight to the point and cut out the pleasantries. My sister thinks I've done the wrong thing and I should continue being friends with him as it makes life easier for DD.
AIBU?