dozer you can still be my fan 
but what exactly do you disagree with me about ?
this man is being selfish, but OP needs to put her foot down (with herself ) and make time for her, and her alone
it sounds like her DH is actually a good guy and wants her get more time for herself (he is probably noticing she is rather frazzled and fed up)
so what does OP say ?
oh, I couldn't possibly ask DH to babysit
oh, I would feel guilty for doing things for myself now I am a mum
oh I don't know what to do with myself any more
OP, don't be all mumsy, you are an individual in your own right, not an all-encompassing goddess who is all things to your children all of the time
give 'em a bit of light relief from you
it will do you all a power of good