1. fall out
Let's not fall out over such an unimportant issue.
He noticed that his hair started to fall out.
fall out of love
Elizabeth, I really don´t want fall out with you about over this!
John and Marry used to fall out a lot and they eventually split up.
You could fall out of a gondola or off a bridge.
My wallet had to fall out of bag at the airport
English word "quarrel"(fall out) occurs in sets:English Metaphores&Words of wisdom+some phrasal ve...Phrasal verbs 2