Complex sentence: Following Freud's collapse at an academic conference, Jung and Freud continue correspondence via letters, through which they decide to end their relationship, after increasing hostilities and accusations regarding the differences in their conceptualisation of psychoanalysis.
Split into simpler sentences: Following Freud's collapse at an academic conference, he and Jung continue correspondence via letters. They decide to end their relationship after increasing hostilities and accusations regarding the differences in their conceptualisation of psychoanalysis.