When the only bond between close friends is attachment, then even a minor issue may cause one's projections to change. As soon as our projections change, the attachment disappears, because that attachment was based solely on projection and expectation. It is possible to have compassion without attachment, and similarly, to have anger without hatred.
Love is like a hunter, who cares not for the game when once caught, which he may have pursued with the most intense and breathless eagerness. Love is strongest in pursuit; friendship in possession.
A drop of honey catches more flies than a gallon of gall. So with men. If you would win a man to your cause, first convince him that you are his sincere friend. Therein is a drop of honey which catches his heart, which, say what he will, is the highroad to his reason.