i am happy being a house wife. why do i feel as though my marriage is becoming one sided?

I've studied/worked most of my life. I'm happily married (most of the time!!). When we had kids (three close together) I decided to take a break from work to care for home and kids. Now I feel as though our marrige dynamics are changing. I feel as though I give so much and get so little in return. From the kids that's ok - I love to care and give to them it's my job and vocation. From my other half i find it harder as he's an adult and in an "equal" marriage with me.......how can I stop myself feeling angry/ resentful of him when he doesn't "give" so much.......??