I meet up with a friend and her dc once a week after school. Her eldest is almost 5 and I find her behaviour towards me to be rude and upsetting. My children would never behave like that and if they did they’d be spoken to about it!
She will say things to me like “I don’t like you coming to my house” and “you’re boring.” Her mum looks embarrassed and tells her to say sorry but she can still be rude. Her mum says she’s just tired from school but I am not sure it’s an excuse as mine wouldn’t be rude like that. She also moans at us both if we talk too loudly 
AIBU to feel upset by the way she speaks to me? She’s known me her whole life and I’ve always had lots of time for her. This only started recently, mum wonders if it’s the influence of other children in her class, but i’m not so sure.