For Example You and your friend get in a fight because he or she won the championship for a sport. You where 2nd place and you really wanted to be 1st, and you got really Jealous so you guys get in a huge fight and almost lose your friendship
Try Managing conflict by being nice and giving a reward or something else. Conflict wont be managed by its self so u need to do it.
Disagreements can cause a lot of conflict. For example two coaches get into an argument be cause disagree with one another.
To Solve this you two find one thing about the Disagreement that you both agree on. That one little thing can change the whole Disagreement, and make it to an agrement.