I have some friends I haven't and don't foresee quarrelling with. For eg, in my trips with my UK travel mate, I don't recall ever having angry confrontations with her. However there are also friends whom I treasure, but somehow sometime, our conversations will lapse and degenerate into a sulky childish thread I can't seem to get out of. Really, all I ever want is to tread lightly. I hope you can see that.