We had to separate my parents due to my mom interfering with my dad's care, and I'm battling guilt and depression. Any advice?

We had to separate my parents who are about to celebrate their 66th anniversary due to my mom interfering with my dad’s care. She is in a memory care unit about 4 miles from where he is in a SNF. I took him to see her Saturday and she cried very hard when we got there. She is taking this very hard but he seems to be getting some much needed rest and skilled nursing he desperately needed. Just wondering if anyone else has had to go through this and how you dealt with the extreme depression and questioning if this is going to cause my mom to grieve herself to death. I think this has been one of the hardest things I’ve ever had to go through in my life. I’m praying for the Lord to give me the strength to not give in to my emotions. I know deep down this was the right decision for the best of them both, but emotionally, I question if we did the right thing.