I dont wanna be the nice guy today

I'm always the one who has to keep shit together and its getting depressing.... I have a Husband and 2 boys. my youngest has Autism and he can pick up a bad habit quick... if he sees how you react that's how he will as well...for years I have been dealing with this issue of keeping my husband cool... when he gets mad it runs his entire day including mine... he is almost like having a 3rd kid.. I hate when he gets in his mode mainly because my son sees it all... he reacts negatively when he doesn't get his way or things dont go as planned ... I've always said that I believe he is on the spectrum too, but never diagnosed. Im in the process of trying for a 3rd child but today made me feel hesitant... will he be patient enough for a 3rd child in our home... we push his limits everyday with our youngest already on the spectrum... Today I used his own words on him "what the hell is wrong with you" and he didn't like it at all... so he replied "why would I ask him something like that " my reply "well you say it to the kids".. what I'm trying to say is I never get to be the one who gets upset or mad because I'm too busy keeping his temper or antics in check... he's never been abusive in any way.. but I'm just tired of him being a grump.. he is always blocking our blessings.. here I am with no job and he's complaining that he cant work a 3rd day of overtime at a company that's on a labor budget... we aren't starving and all the bills are paid !?! If I'm the one Tripping ladies please let me know... but I just had to vent