Dd (4) is very much devoted to me, it’s normal I think at 4, and dh doesn’t do much with her or spend that much time with her.
Tonight at bedtime he said I love you and she said ‘I love you but I love mummy more.’ His response was ‘I love you but I love your brother more, which is why he will get loads of Christmas presents and you won’t get any.’
Dd then started crying and he said ‘oh and your brother will get fifteen birthdays and you won’t get one at all.’
Then he went downstairs and left me with the wailing.
I’m sure she loves him loads more now 
It’s not an isolated event.
It’s not a normal response, is it?