Eric and jon have been friends for many years, but recently, their friendship could be described as in the deterioration stage. which factor is most likely to bring the relationship to the ending stage

The relationship of Eric and Jon that has been put to a deterioration stage are because of factors that will contribute to it. Factors that could affect their friendship this way could be because they start to grow and change that could create boundaries and could lead them into meeting new people that they are more fond to be with than just each other.