"Friendship issues" refers to problems or difficulties that arise within a friendship, such as disagreements, arguments, or misunderstandings that can strain the relationship between friends. Full definition
Create a classroom / school environment where students feel encouraged and engaged in learning, solve their own friendship issues, and feel a sense of connection, value and challenge. (sounddiscipline.org)
They can also act as coaches for children, teaching them helpful social skills and talking through friendship issues to help with solving problems. (kidsmatter.edu.au)
Now we use the skills in the social and emotional learning programs to build understanding and skill the children with strategies they can use with friendship issues before they arise as difficulties. (kidsmatter.edu.au)