Yes, all the ungrateful things said & done to the wife/caregiver during the husbands battle with cancer comes with the deteriorating of the body & mind. It makes me so sad to remember after a year and a half of loosing my dear husband of 43 years. And no, you will never forget it. Then you'll try to analyze it once they've passed and make some kind of since of it all. I've even tried to convenience myself that he didn't actually love me anymore once he was diagnosed with cancer. That at first was the only thing I could think of that would make him treat me so horrible while I was so lovingly, gently trying to keep him alive but nothing I did pleased him. How dare god, our loving Jesus scar our minds and souls for the rest of our life by causing our loved one to die to then have the loves of our lives treat us like pure trash is how I felt and sometimes still get angry just thinking about it all. I've tried to come to terms with it all but I don't think I ever will. I'm a baptised Christian and why I can't get this all streight in my head haunts me. But then again, I've never lost my husband before. I guess you'll feel the same some day but I hope only the best for you & your loved one. My heart aches for you both. I like others here know all the pain & suffering cancer can force you to endure. That goes for the caregiver as well.
Now, as for his daughter - I take it she's the appointed Power of Attorney for him. That's a legal document drawn up by an attorney which makes her legally able to spend his money, pay his bills, handle all affairs of his since he's not capable to do so for himself. So if this is what she is, than you surely do have the right to contest in court just how she's spending his money. The courts will make her show every dime she's spent & decide if it was ligitimately spent or wastefully spent. This will definitely create a mega blowout between the two of you and cause great grief for you especially if your soulmates health deteriorates in the future.
Personally, if I were in your shoes I would check & see if your state recognizes Common Law Wives. A lot of states don't acknowledge it and the soulmate left standing after the other dies gets nothing at all. Zelch / -0- / No $..........
If you're able to, you might even approach her to discuss the matter if the two of you had a halfway decent relationship before her fathers cancer. What I've finally concluded is that the death of a spouse or soulmate brings the worst out in everyone surrounding the deceased. I've seen & heard of it all.
Like you said, your soulmate really doesn't need to be bothered with all this crazy stuff going on - & everybody needs to remember that this dear man is in the BATTLE OF HIS LIFE & that TOPS EVERYTHING ELSE for sure.
Hugs & prayers being sent your way. And I'm just a little old caregiver that lost the love of her life back in August 17, 2010 after being married for 43 years to this hellish thing called Tongue Cancer.
Broken (In Memory of My Husband)