Long time poster, obvious reasons for name change.
DD had just left year 11 and is moving schools.
In year 9 she was kind to a new boy who then latched onto this kindness and decided she was his best friend. Obviously she wasn't - he's just a boy who needed a smile when he joined a new school.
Since then he has obsessed over their friendship - texts phone calls etc etc.
It all got too much and was interfering with her mental wellbeing - she blocked him on all social media at the start of GCSE study. He then contacted many people to beg her to reinstate him. Head of Year was involved and we believe spoke to his parents and things were better for a while.
Since exams have finished and she's left that school, he's ramped it up - clusters of calls (including the middle of night) and he's contacted upwards of a dozen people (friends and unknown friends of friends) to beg her to talk to him.
I've composed a letter to his mother which I could send on FB messenger (she's not a FB Friend and no mutuals)
but I guess my social conditioning prevents me sending it, and I'm not sure it's the appropriate action.
I just want her to start a new school tomorrow free of this weight.
I'm also aware this is not good for his mental wellbeing either and stopping would be beneficial to him.
Please, does anyone have any advice?