SO does minimal parenting... Rant

Sometimes I just want to throttle my SO... Last night I grabbed a quick snack before putting our DD to bed. She started to cry because she was ready to go to bed. SO jokingly makes a comment about how my snack is more important than DD. So I told him he was more than welcome to put her to bed. He basically said no, which ticked me off. I told him when I go back to work he'll have to do it every night, so he'll have to get use to reading her stories etc.

He says to me he's not going to read her bedtime stories because he doesn't like to read stories. I just stared at him and said "it's not about you".

He has the nerve to tell me that she doesn't even know the difference. She's nearly 10 month old, wtf do you mean she doesn't know? So I put DD down and the entire time I'm reading to her she's watching me turn the pages and she's smiling at me, and all of a sudden I just feel sad.

I pour my heart and soul into everything I do for her and her own goddamn father won't read her a bedtime story. I don't understand why he's acting like this. I alternate between being sad for DD and being angry that he's being such a lazy fuck.