"to get along with someone"
to have a good and amiable relationship with another person or group of people or an animal or animals
affable, agreeable, accord, amiable, amicable, attune, buddy-buddy, click, companionable, comradely, concord, convivial, cordial, familiar, fit, friendly, genial, good-natured, harmony, harmonize, heart-to-heart, jibe, kindred, likable, lovable, open, relationship, sociable, suit, warm, welcoming
These two people are getting along with each other
. - - - - ->
<- - - - - These two people are not getting along with each other