ANNOYING MOTHER IN LAWS!!!!

my mother in law seriously irks me, and it's worse after having my son.
So to sum things up, my son was born 6 weeks early and was completely healthy. His doctor is mainly focused on him eating more and gaining weight. Every week or so he is going up in his eating and eating more and more.(yaaayy🤗) He's now eating almost 3 oz every 3 hours and my mother in law always makes the comment to my son *talking in her baby voice* she tells hiM 'tell your mom and dad to stop feeding you so much' ummm excuse me? Lol then I was rocking my son because he was fussy and she made the comment to me 'stop messing with my baby' again...I snapped and said "I'm the one who gave birth to him ha" and she goes "yeah that doesn't matter" then this weekend I'm getting out of the house for ONCE and getting my nails done, my mom offered to watch my baby and my mil makes the comment to my son in her baby voice again "yeah no more me time for her, and that's her choice, she made the choice to get pregnant". Well obviously!!! I'm a stay at home mom, there's nothing wrong with getting out and doing something for yourself once a month, literally!!!!