I'm in a situation where I became pregnant with the wrong person and decided to raise my child by myself. Since before his 3rd birthday the biological dad disappeared and hasn't had anything to do with him.
I married his step father when he was 4 and he just started calling him dad and on it went. He was a terrible dad and always treated my son like he was an inconvenience or irritation. So after 4 years of a very unhappy family, my son seeing a dad that drinks too much and is aggressive and mean and other issues, I walked out. Now he is pretending to be the world's greatest dad. By spending 4.5 hours a week with him. He won't take him overnight which is fine but he has now done stuff like dropped my son home in the evening in the dark without walking him in or making sure I am home.
I saw his car pull off as I came down the street. He didn't pitch last night to take him for dinner as was planned last week and confirmed on the weekend. He is in a new relationship which is fine. But I feel that he is going to give my son less and less attention as this goes on. So I feel I need to talk to my son about this. And explain that my ex isn't his father. But really struggling to figure out the best way to do it. I don't want my son thinking there is something wrong with him because his dad keeps dropping him or forgets about him.