@blackmortimer, I think what you have written is very wise. I think some people think that when your loved one moves into care that's it, you cease to love them or care about them. The whole phrase 'putting someone in a home' really grates on me, as it implies you are just washing your hands of them.
Instead you let others do the day to day care, but you are still there in whatever way you can be. It's all so difficult due to the covid regulations, but those should ease over the next few months. Before lock-down I spent some very happy times in mum's care home, getting involved in activities and getting to know the staff and other residents.
It is mum's home in the best sense of the word. Not the home she would have wanted, but the home she really needs.
I hope you and Margaret get to share some good times again, even if they are not what you would have envisaged a few years ago.