Cohesiveness or Cohesion
The technical classification of cohesiveness is a "common of the degree to which group members are attracted to each other and are annoyed to stay in the group." There is some discussion as to whether the two parts of cohesiveness would be better addressed different-that people can be motivated to stay in a group regardless of their attraction to the other members. Attraction does not necessarily mean liking. Group members can be cohesive and still not aggressively like each other in a social sense.