SAHM Should Deal With It

I’ve been debating posting this but I figured I would since i can’t tell if I’m right or wrong.

Last Sunday night my baby had a tough night and I slept a chopped up 3hrs, by the time my boyfriend woke up for work at 7 I was exhausted and close to tears. He decided to go into work a couple of hours late to give me a chance to catch up on sleep while he watched the baby. He let his supervisor know and she was fine with it so I got what I thought was my well deserved sleep.

Now, his mom works in the same place as him and goes in an hour later than him so when she notices he’s not there she texts him to ask why he wasn’t at work. He explained the situation to which she replies, “You better come to work with a better excuse, Norma is a stay at home mom she needs to deal with it. No one is going to give a crap that she was tired.” My SO replied back with “Putting the baby to sleep is not easy and I already talked to [supervisor] and she doesn’t have a problem with it, I’m not taking the whole day and I’m still going to do my full 8 hour shift.”

When my boyfriend showed me the messages I was a little taken aback and hurt. I didn’t really ask him to stay home, he offered. Not to mention that she very well knows that my baby rarely sleeps through the night and some days I’m lucky if I can catch a nap with him during the day because I have other crap to do.

Do you think she was right in saying I should have dealt with it because I’m a SAHM? Should I have sucked it up with my 3hrs asleep and taken care of him like a literal zombie ?