It's very challenging. I was closer to my dad. It was easiest when my mom went through a phase of hating me and giving me the silent treatment. Then she just gave the phone to him and if I visited, she stayed out of the room.
Then keeping up appearances became important when outsiders asked questions which made it harder. However, as he aged, she started to resent and hate him (even though she had 24-7 help and our blessing to have him in Memory care) so she was glad to leave the house, but I had to intervene to get her to stop being verbally and emotionally abusive to him.
Once he was in Memory care it was easy, but he was no longer himself

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