Answer: Romeo illustrates the manic state, and DeJuan the hypomanic state.
Explanation: The DSM-5 refers to the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition. A book by the American Psychiatric Association.
Basically, this book is a manual for assessment and diagnosis of mental disorders and does not include information or guidelines for treatment of any disorder.
According to the book, the best diagnosis for Romeo and DeJuan is Romeo illustrates the manic state, and DeJuan the hypomanic state.
It defines the manic state as suffering from mania; the state of abnormally elevated or irritable mood, arousal, and/or energy levels.
And the hypomanic as a mild form of mania, especially the phase of several mood disorders characterized by euphoria or hyperactivity.