Boss (somebody) around: To exercise control or give orders.
Fall out with: To ague and stop being friendly with someone.
Phrasal Verb: Mildred fell out with her best friend again yesterday.
Gang up on: To forma group and simple a person out for unkind.
Phrasal Verb: All the kids ganged up on the new boy.
Get along with: To be or remain friendly.
Phrasal Verb: My brother and my aunt don't really get along with each other.