Trouble with spouse

Sooo, my baby is 3 1/2 months old and I have two kids and he has one from previous marriages.  I have been experiencing a lot of anger and frustration toward my spouse.  I don't show it but I feel it.  He works and brings home the money so I can stay home with our baby and our other kids during the summer.  I am so grateful for that!  However, I have been battling a horrible cold and he does not help me.  All I want is for him to take the baby so I can take a nap on his days off.  Instead HE stays in our room and turns on a show in the morning so he can snooze for a bit while I'm coughing and sneezing and miserable out in the living room.  Then he gets up and goes outside to "cut the grass", but what do you know?  He gets drunk and hangs in the pool all day!  While I'm inside miserable.  WTF?!??!!  So last night I decided to go buy a small bottle of vodka and I drank the whole fucking thing.  I wasn't too drunk to make dinner, put our older kids to bed, put the baby to bed and wake up twice to feed her (formula)....and now he's all pissed off.  He thinks I'm hiding booze from him or something.  I'm seriously beginning to really dislike him.  I know I need to talk to him but I feel like I might just explode if I try.its funny bc my ex husband sucked in many ways but he was alway there for me emotionally.  Sad