Annoyed with my husband can anyone help me?

Okay, I'm aware that having a new baby puts stress on a marrage & all that blah blah....... But I DO EVERYTHING FOR MY SON & HE DOESN'T HARDLY EVER LIFT A FINGER!!!! but he is SO FREAKING SELFISH I mean our son is sleeping on the floor & I turn the tv down a little so he doesn't wake...... & my husband goes & turns it back up only louder & says "oh well I can't hear it!" when he's on his computer I mean WTF & I ask him to stop messing around on his computer & make a bottle he throws a fit and stomps off!!! again I ask WTF???!!!! I mean I have to put wyatt in his bouncer & set him in the bath room so I can shower!!! what do I do? I'm at my wits end!!!