Is this weird? Would you be mad?

I just gave birth barely 48 hours ago and have a one year old. My boyfriend’s grandma and aunt watched baby1 overnight for 2 nights while we were in the hospital. They have expressed to me lately that they think I “control” my one year old because I make different parenting choices than they did. (🤷🏼‍♀️). The first morning, we realized that both of them deleted us and added us back. When I asked, they said it was an “accident”. I later saw that they took him out to a party because they posted pictures to make it look like they were home but someone tagged them out. We also didn’t share the birth news with them until we posted because they like to share ALL of our news for us - with our first, they didn’t even ask, just posted him, and they had started telling everyone I was in labor already too. I wanted at least one special announcement for us since it’s our last baby. But They sent him a really immature message saying “I’d like to express my appreciation” and told him that he was unappreciative of them watching baby1 and that they must not mean anything to him as we were getting discharged. And other family members told us they texted them to vent about being mad too. I grabbed baby1 from them to avoid drama and try to smooth things over but they refused to look at me or talk to me. Then as we were leaving her driveway my Facebook kept glitching out on the grandma’s conversation and I realized it was because she deleted me. I tried to talk to her and she said she was too pissed to want anything to do with us. Then this morning, she messages my boyfriend and tells him that our son will need medicine but wouldn’t say why. So I asked both of them if they took him out and someone there was sick. His aunt avoided conversation and told me unless it was an emergency she “couldn’t talk” and his grandma got unnecessarily defensive, ranting on that they did take him out but that they asked my permission and basically sat in a corner and didn’t let anyone interact with him (which I call BS on) to protect him and how I just risk him to sickness and got him sick with COVID in January. (We thought my family had it but they didn’t). I told her they definitely didn’t because I wouldn’t have let them go, knowing we’re bringing home a newborn, and told her that accusing me of purposely risking him was bullshit. And even told her that if someone was sick, then shit happens, but I want to know. The only thing they are telling me is vaguely mentioning a cold.