Since Charles considers himself a causal scientist he would probably look for what causes Cleo to behave in this way. Most likely he will think that Cleo's behavior is reflecting a conditioning she experienced in her past, most likely in her early life. His explanations would be that the past experiences formed Cleo's reactions.
Inez, on the other hand, would look at Cleo's behavior from a different angle. She would probably attribute Cleo's behavior to the meaning Cleo is assigning to the situations. This meaning, negative in nature, is what causes Cleo to respond with anger.