Denial happens because suicide attempts are extremely difficult to face for extended family who undoubtedly feel undue responsibilty for the choice of the person attempting.

Most people don't have much training in the psychology of suicidal behavior and it's unrealistic to expect the immediate family and caregivers to respond gracefully.

You sound like a loving and compassionate person. Take this one day at a time. There is no point in anyone assigning blame to anyone else so if you encounter this behavior, encourage that although the circumstances were less than ideal, the main goal is to get her healthy now.

I highly recommend this group. https://afsp.org/

best of luck to all.