RIP Dad

Dad lost his battle with cancer 3 nights ago. We managed to nurse him at home as per his wish and I was with him when he went.  I know grief takes time and we all react differently. I thought I would feel some relief that he is no longer suffering but it hurts so much that he has gone. I cry even when out in public. Mum, who has mental health problems, is acting like a toddler, angry, talking bout everyone else's death and Funeral, blaming dad for random things. I don't have the patience to help her and nothing do is right anyway ie you help you are taking over, you let her struggle you don't care. I have been away from my husband for 2 weeks and need to go home but worry bout how she will manage.  Everything feels weird.  Not looking for answers just rambling on here, feel alone