Final answer:
Schizoid Personality Disorder is characterized by staying away from others, viewing others as intrusive, and believing that relationships are messy and undesirable.
Step-by-step explanation:
Staying away from others, viewing others as intrusive, and believing that relationships are messy and undesirable are features of Schizoid Personality Disorder. Individuals with this disorder typically prefer to be alone and have limited interest in forming close relationships.