Loneliness - most people would define loneliness as a time when someone needs others to be around them and make them feel loved. More specificalyl people often need someone of the opposite sex. Someone to fill that 'love-from-the-opposite-sex' shaped hole in their heart. I know this feeling. And no matter what anyone says, I think we all do. Those of us who deny it are just in denial.
Denial - most often defined as the first stage of loneliness.