Identifying Conflict in Dialogue

In a play, dialogue can reveal a character's personality and their relationships with others. Consider the following excerpt from a fictional drama where two characters, Alex and Jamie, are having a conversation about a recent event.

Excerpt:

Alex: “I can’t believe you did that at the party last night!”

Jamie: “I thought it would be fun! Everyone was laughing!”

Alex: “But you made a fool of yourself and embarrassed everyone!”

Which literary device is primarily being used in the dialogue between Alex and Jamie?