We have decided we don't want to be friends with you anymore,
Jerry and Barry have been excluding Bob from their friend group. Bob is feeling upset about this because he has lost his two best friends.
Bob walks past a cafe and spots Jerry and Barry sitting together without him. Jane asks Bob if he wants to go talk about it to someone and he doesn't feel so left out anymore, but still feels left out by his friends.
Hey Bob do you want to go and talk to a teacher about it?
The teacher helps resolve the problem and suggests that Bob should hang out with Jane, and that she could be a nice friend to have. Bob thinks about what the teacher said and feels much better.
I think that...
Bob decides to go with Jane to the cafe. He feels so much better after he talked to a teacher a Jane.
Hey there is a cafe just down the road do you want to go get a milkshake?
Bob and Jane got to know each other while at the cafe. Bob doesn't feel so lonely anymore and knows that he is always will have a friend to talk to even if some other friends leave him he knows Jane is here for him. This is an example of a bystander stepping in the problem that they see and helping in any way they can.