There is no complex relationship. It is an outdated one. A situation which is slowly going away.
You are attempting to introduce two extraneous points into the discussion. The first, is the west. How the west thinks has nothing to do with the monarchy.
The second is "royal proclamation".
The original question, what is the relationship between Canada and England, can be answered simply.
The relationship between the two is good, but the monarchy is on the way out.
Your point of view is precisely the problem, you don't see it outside your own Province, which makes you sound like a conceded prick, which you likely are.
You can't change history, the relationship between Canada and England is complex, Canada's relationship with France is a simple one.
