Think about how you love a difficult friend. You could list their faults in under a minute — they are late, they talk over people, they disappear for months at a time. The list is accurate and it has never once made you love them less.
That is the trick that gets applied to everybody except the self. There, the same list is treated as a case for the prosecution rather than a description of a person.
The whole of it includes the parts you would amend given the chance. Loving those isn't approving of them. It is the thing you already do, competently, for somebody else.