I know how you feel my dad got like this at the end he was not making sense and then would get abusive, which broke my heart as I love him so much. When people are really sick they are scared, in pain and also trying to distance themselves from those they love. Just know he loves you, the day before dad died he told me to bugger off as he was upset by my mother being there (they don't get along) but the day after when he was clearly dying he let me hold his hand and made and effort to look into my eyes and wink at me (showing the dad I loved and knew) so although it doesn't help and can be heartbreaking to go through dont take it personally just by being there he wants to spend his last time left with you, enjoy the good with the bad and know from my experience that this can be all over in a flash so enjoy it and have no regrets for yourself xxx
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