Love all, trust a few, do wrong to none.

Goodwill, trust and harm are three separate settings, and confusing them causes most of the damage. Goodwill can be extended widely at almost no cost. Trust is expensive and should be earned, and the ban on doing harm applies to everyone regardless of how you feel about them. Treating warmth and trust as one dial is how generous people end up bitter.

Look at where you have handed someone trust when what you meant was warmth. You can keep liking them and still stop relying on them for the thing they keep failing at.