[T]hey became a team, a family of two. There had been times before . . . when they had acted like a team, but those were very different from feeling like a team. Becoming a team didn’t mean the end of their arguments. But it did mean that the arguments became a part of the adventure, became discussions not threats. To an outsider, the arguments would appear to be the same because feeling like part of a team is something that happens invisibly. You might call it caring. You could even call it love. And it is very rarely, indeed, that it happens to two people at the same time. . . .
From the Mixed-up Files of Mrs. Basil E. Frankweiler
by E.L. Konigsburg
I felt this passage on becoming a team correct and very appropriate to the discussion. Never mind that it may be from a children’s book (1968 winner of the Newbery Medal), it’s valid for all ages.
(emphasis is in the original)