The term that describes the emotional tone of a personal relationship is

The term that describes the emotional tone of a personal relationship is "communication climate".

A Communication climate alludes to the tone of the relationship as communicated by the verbal and non-verbal messages between individuals. The correspondence atmosphere is made by the way individuals feel about each other.Positive communication climate is made when individuals feel they are esteemed and a negative communication climate is made when the commitment of people isn't valued.