recently witnessed some behaviour from my future mother-in-law that left me quite shaken, and I’m not sure how to process it. I’ve met my fiancé’s parents a few times before, and they’ve always seemed like nice people. My future MIL in particular comes across as very sweet, with a high, almost childlike voice. We recently went to Paris for my birthday weekend. My MIL and her husband joined us, and everything went well. Afterward, my MIL and I stayed an extra day and travelled back together by coach. During the overnight journey, something unsettling happened. I woke up to hear her shouting extremely loud annd angrily from behind me—swearing and aggressively insulting two women. I was confused. I later learned she had become annoyed because they were talking and she couldn’t sleep. she began mocking them, pulling faces, and then escalated to shouting insults at the top of her lungs. Just verbal aggression and degrading words. Calling them prostitutes, cunts, sluts, whores, worthless good for nothing ugly fat bitches. one woman would reply calmly she is crazy and needs help and her hair is ugly, color looks like a chickens (a few more mild insults) but you can see they were scared. Their English was bad too. this made her even more angrier. This went on for rest of the journey. A man sitting nearby tried to calm her down, but it didn’t help. The rest of the bus was completely silent. I just froze in shock. When the coach finally stopped, she suddenly said, “Let’s go—quickly! Run. Those women are going to want to beat me up after this,” and rushed off. What unsettled me most was how, shortly afterward, she completely switched back to her usual sweet, high-pitched voice and behaved as if nothing had happened. I’ve seen people argue in public before, but this felt very different. The intensity of her anger, the change in her expression, and the complete shift in personality afterward really disturbed me. I felt anxious and shaken for quite some time after. this 60 year old woman screaming mocking and pulling crazy faces was especially bizarre and disturbing to see. she was just so aggressive. When I mentioned it to my fiancé, he dismissed it as no big deal, saying that’s how she is and those women were probably asking for it. which has left me even more unsure about how to feel. another thing that I find disturbing is this woman works with vulnerable children. she is now texting me inviting me for brunch, a movie and shopping with bunch of hearts and xxxxxx I’d appreciate any thoughts or advice on how to process this or approach the situation.