If you were with me for the good times, then ditched me at the first problem and shit talked me and turned other people against me, then described yourself as “a loyal friend”, I think I’d raise an eyebrow. Intent matters. Let's say your partner is trying to toss a coke bottle into the garbage bin. Let's say your partner misses and bonks you on the nose with the bottle instead. Do you leave? What if your partner, instead, had been trying to throw the bottle at you in anger?