Let me explain.
I give you exhibit A
I have a few genuine Gertrude Jekylls but I still do not have a New Dawn, which I could remedy if I chose to do so. The wrong rose annoys because half the time I do not really mind it. I convince myself I even quite like it a bit. Then a day comes like the day when I looked at it recently and I think 'why do I allow you in the garden when I do not like you?' I am rather hard-hearted with most plants I just do not like. I just remove them, so why do I not remove this one?
I don't know, but I suspect it has something to do with that it is planted where I want a rose to be and it is not a good idea to plant a new rose in an old rose's place. Yes it can be done, but that involves more work than I am prepared to put in. So the decision is: a) not have a rose here and plant something else, b) remove and faff about and plant a new rose, c) buy a New Dawn and put it somewhere else and just get over it or d) just get over it.
Currently I am at e) when you do not know what to do, do nothing, the answer will become clear at some point.
Time will tell.