He sings to her every night and tells her goodnight.

I ask him to sing to me and he says no. he won't even say goodnight.

he ignores me all the time and forgets about me but never forgets about her or ignores her.

she draws pictures of him and her and he displays them but i did once and he just didn't care.

he does stuff for her when he's tired but if i ask and he's tired it's just flat out no.

she starts to baby talk and he baby talks her back and if she's being annoying he baby talks her.

but if i do any of that he just yells at me.
she and i are also the same age.