What Feels Like a One-Woman Show

I've been feeling a little frustrated lately, and I'm not sure how to solve the problem. The thing is, my kids love me and Russ (of course they do, we're their parents!) But the problem is that whenever my kids need ANYTHING...a glass of milk, help on the computer, a trip to the potty, bath or bedtime, they want me over anyone else. (Now, I will say, that without a doubt, they prefer Daddy for playtime. He is MUCH better at playing with them than I am, thank goodness!) Still, after a long day of being home with the kids myself and tending to their every-single-must-have-this-moment need, I am ready for some help when Russ gets home. And the thing is, he's ready to help, too. But the kids seem to forget that Daddy can do all of the things I can do. They forget that he's more fun at bathtime, and that he doles out more chocolate milk at bedtime than I do. They just want me. And it's exhausting. And in the middle of the night, when the only person who can console them is me, it's frustrating. I feel frustrated at the kids and frustrated at Russ, and I don't even think it's anyone's fault. It's just the way it is...but I can't help wishing it were different.