mend your fences
US /mend jʊər fensɪz/
UK /mend jʊər fensɪz/
1.
to repair a damaged relationship or improve relations with someone, especially after a disagreement or conflict
:
•
After their big argument, he tried to mend his fences with his brother.
•
The politician needs to mend his fences with the voters before the next election.