Not sure if I'm overthrowing this but I go to a club once a week, and I'm starting to worry about a friend there.
I have known them for years. They are a very gentle and lovely soul. Last week they was asking me a question about the hobby that they should know snd I thought it was a bit strange but I really made a mental note as it seemed so out of character.
This week again they seemed very confused about something they should know. They don't like swearing and said dam and they slapped my arm. That's not swearing to me, again it just seemed off for them to behave like that.
I know it's just two weeks but when do you need to worry? I'm hoping there's some other reason but it's like there's been a personality change