Does anyone else have MIL problems? My fiancé and I only recently got engaged. We didn't plan it or make a huge deal of…

Does anyone else have MIL problems? My fiancé and I only recently got engaged. We didn't plan it or make a huge deal of it, we aren't really that kind of a couple. She sent him a text saying she was unhappy she didn't know about the engagement and that she hoped she'd at least be included. His ex wife was extremely rude and hostile to her and his other family. So I sent her a message essentially saying I'm sorry you didn't know, it wasn't really a very planned engagement and I'd be more than happy to include you in my plans. I offered her my number if she'd like and said I didn't want to handle this like his ex did. She then proceeds to call him after completely ignoring me and yell at him about how it was rude what I said and how she didn't appreciate it and then berate him on a ton of other subjects. I was extending an olive branch and she went way out of her way to misconstrue literally every single thing I said. I no longer feel bad. I won't be hateful to her, but I don't need to get bitten twice you know? I don't understand some women.