Hi there and welcome!
I don't think your being selfish or over reacting, I am a SAHM myself and finding myself needing help at times. How ever, I really do love staying home with my DD but you said you that you don't mind it, so I am wondering, would finding a part time job and putting the kids in day care make it easier on you?
My DH takes some time till he gets the jobs done around the house, but normally since he's out working and I'm home I do everything myself unless he has a day off or we're having company over. I try and run my home and look at it as a little business, most nights before DH gets home I make it my ambition to have the house nice and clean, a warm meal for him and sometimes even some scented candles so he can have something to look forward to after a long day of work. If you put systems in your home for cleaning, running errands, cooking and such it really becomes so much easier.
If you would rather continue staying home and not getting a part time job would you be able to take the boys out to the park or church to meet other moms for a more social life?
Also, to take the stress off cleaning the house while managing 2 young boys would you be able to afford someone to come in and clean your house once a week or even once a month? if not, do you have any family that can help maybe watch the boys while you clean or just have some quiet mom time?