My lovely dad died just over 2 years ago. I got on pretty well with step mum but since he died she's been engulfed in grief. Haven't seen a huge amount of her due to COVID. I supported her and helped her initially though before COVID and have been nothing but kind to her. I try to ring her once a month (she never rings me) but have been finding it very strained as she's becoming more abrupt each time. A few months ago she said my eldest DD (18) never rings her (not true, but step mum never takes any interest whatsoever in my DDs, even when my dad was alive) and a few days ago I felt she'd basically ditched me by saying 'you and I have nothing in common any more'. I took that as my cue to back off and give her space. I'm friends on FB with both her daughters and they were close to my dad. Should I make them aware of the situation and tell them I'm going to take a step back? I would say it to step mum but don't want to upset her more even though it's what she wants