Answer: Bipolar disorder
Explanation: Taking into consideration the symptoms described, Calvin would most likely be diagnosed with bipolar disorder. This disorder is one of the "mood disorders" where a person experiments both spectrums of depression and mania, meaning that it goes from feeling the worst to being the best among other things.
Impulsivity, irritability and perception distortion are other common symptoms presented in bipolar patients.
The books ‘Again Again’ by: E. Lockhart, and ‘Breathless’ by: Jennifer Niven. The books share the them of Romance.
The advantage of applying learning approaches to the study of personality is how individuals alter their behavior as a result of rewards, disciplines and other experiences in life, a method known as learning. Classic behaviorists center firmly on obvious behavior and therefore the ways in which it will be littered with rewards and punishments.