mend (your) fences make peace with a person.
☞ This expression originated in the late 19th century in the USA, with reference to a member of Congress returning to his home town to keep in touch with the voters and to look after his interests there. Similar notions are conjured up by the saying good fences make good neighbours.
1994Louis de BernièresCaptain Corelli's Mandolin He knew assuredly he should go and mend his fences with the priest.