Contrary to popular belief, there is just one “ground for divorce”. The irrevocable breakdown of the marriage. In UK law, before a couple can be granted a divorce, they must prove that their marriage broke down for one of 5 reasons. These are adultery, unreasonable behaviour, desertion, living apart for 2 years (with consent) or living apart for 5 years (without consent). You’ll notice that coronavirus isolation isn’t on that list.