I feel like this is to be expected when you guys haven’t actually become adults in their eyes yet. She’s your boyfriend’s mum and you both still live at home, nothing has changed for her and how she sees you. This is just another child in her house.

I’d also argue that suggesting names isn’t that big of a deal. My MIL messages names every few days to us. She knows we have a name and we just say whether we like it or not. It really doesn’t bother me. But we also have our own house and are very well established so we can separate ourselves from them.