Hi Dogtanian,
I agree with all you say - I watched it too. And was surprised to see her self harming. It started out as quite 'light' drama, I thought, and then turned darker as we saw beneath the surface.
Very surprising from BBC1, too. Maybe things are moving on, discussions opening up, can only be good.........specially as you say, she's not the stereotypical self harming person. Older peeps do it too

.
Her husband played a therapist......interesting......
Take care - all of you ! Poppet