My friend had a stroke she was CG to her hubby she wants me to do it

Where do I start.? My best friend had a stroke came from out of the blue or maybe because she catered and was her husband main caregiver she will never be the same she will not be able to take care of him anymore. She will need Care herself. The last thing she said to me before they carded her off in the ambulance was don’t let nothing happen to her husband, that was a lot to put on me. It’s been three weeks now her condition hasn’t changed much. She is still in the hospital however, his diabetes he doesn’t take his insulin. He doesn’t eat. He fires his regular caregivers. I just oversee what they don’t and I can’t do it anymore. He just lays on the couch because he wants her to come home and I tried to tell him she will never be the same and will not be able to cater to you like she used too. This was a lot for her to ask of me, but I just can’t do it anymore. Now he’s complaining of a toothache. The caregivers really try and help him remind him to do his medicine and what not plus he’s hooked up to a bag that he never changes it overflows all the time. Disgusting I’m not a caregiver. I’m a retired special-needs school bus driver. Tell her that he’s not being taken care of, and I can’t do it no more have my family. I have a sick husband , as it is left with no phone because she has it he hasn’t been to doctors appointments because she’s the one that made all of them and got him there via transportation. I don’t know what to do anymore when I go here I tell her please we need to do something about him she says, but then they won’t let him come out when she does. I can’t do this anymore , he left alone after the caregiver leave at 5:30. I can’t keep running down there and checking on him my work the graveyard shift since I retired from the school district. I asked him if he wanted to go stay where she was until she got a little better, he said no , I can’t just lay there doing nothing. I don’t know what to do. I don’t know who to call. I don’t know I have my mouth. I have permissions to take care of things, but I do not what I do. can he shouldn’t be there alone anymore. Who can I call? What do I do please any suggestions? Thank you very much.