I've never had anyone betray my trust, but that's only because I've never given it out to begin with. trust only your reflection when you look in the mirror, who knows which face people will be using; 1 or 2?
Not sure I would class those things as expression of love. Example, an old man on bus starts talking about the old days to a twenty year old women. After an hour it's his stop, as he get up she declares, "Be careful you don't want to trip" ... that is not love. Care, compassion but not love.