It’s weird right??

So a few months ago my FIL called a family meeting. They said just for immediate family which is fine. My husband got there and his sisters husband was sitting there so he was like well why isn’t my wife here? And they said oh because he already kinda knows. Anyways my FIL then proceeded to tell his kids that he had been having multiple affairs over the last few months and that he had also started doing drugs. They’d decided to stay together and wanted like “the support of the family” while working through things and him getting clean and whatnot. Anyways fast forward and I’ve noticed that my MIL is always pulling my husband into hushed conversations whenever we’re over. She’s never actually had a meaningful conversation with me, like she talks about the neighbors dogs and the kids who live 10 houses down and everyone in between but has never actually like sat and talked to me, Anyways Like it could just be the three of us in a room and she will start like whispering to my husband as if I’m not there and as if he isn’t going to talk to me later 🤷‍♀️ my FIL does the same but will tell my husband to like come look at this over here and then he will sit and have like a “private” conversation with my husband. I think it’s super weird my BIL was allowed over for their conversation but then they act as if I don’t know anything about it and then will talk to my husband about things in whispers. It’s weird right?? Like we have no secrets between us so why would they think that he’s not going to tell me his dad is cheating on his mom?? And drugs besides?? That flipping rocked his world and we support each other through everything, why should he hide that from me?? Am I crazy??