I'm pissed at my MIL I don't care if it sounds stupid, this woman gets under my skin, I tell her I…

I'm pissed at my MIL I don't care if it sounds stupid, this woman gets under my skin, I tell her I don't want to go early to my moms baby shower because I don't want to go early so to get around what I asked she "offered" to bring the food so she would have to pick me up more than an hour earlier than I wanted to go. I'm a week away from being nine months pregnant I dont need to be at a party all freaking night! she's just butthurt she couldn't take me shopping earlier for shorts that I saposidly asked for when I've been telling her that her own son needs new clothes not me... if she wants to go shopping maybe shop for that crib she promised me almost a month ago! or that gym membership for her son and I before the baby gets here.