DM used to pick DC up from school 1 day a week & occasionally babysit for a few hours in the evening (perhaps once or twice a year). Youngest will be going up to high school in Sept & DM has made the point a few times that she is ‘no longer needed’. She is widowed but has a long term, off/on partner & has a good group of friends around her. I have a difficult relationship with her (of which she’s unaware!) as she has no boundaries at all & can be toxic when her mental health is bad (comments about my weight, often brings up incidents from my childhood which was difficult due to abuse). I have learned to put a shield up while recognising that 9 times out of 10 I will feel bad after seeing her & will have to spend time locking my wounds, self-care etc. I don’t want her to feel redundant now she’s not picking my kids up from school & to show I’m grateful for the years she has done that for. I work part time & am thinking of spending a morning or day with her a week when eldest goes to high school. I know I will find this draining & difficult, but I feel like I owe it to her. What should I do?