OK, so you DO have motherly love - love - for your son, but it sounds as if you do not love your life as a mother. And not surprisingly, really, given some of the things you say.
OK, you love your baby, and would like for both of you to look forward to a happy life.
Have you and your DP talked about how life is now compared to how you thought it would be? Talk to him about your lives: suggest that each of you suggests 3 things that you could do to make the other's life better - i.e you suggest things you could do to help him be happier, he suggests 3 things he could do to make you happier.
If he will not and does not respect you, then you should seriously consider separating. Would that make you feel happier? less trapped?
Have you looked at any of the checklists for depression?
Suppose ou made a list and tackled your house, but by bit, and gave yourself a reward for getting it done?
Life with a new baby is HARD. And tiring. You are not a freak.
You might be living with one, though, and I don't mean your sweet baby.