Singleness

[Justin Bieber]

The quality or state of being single, or separate from
all others; the opposite of doubleness, complication, or multiplicity.

[Tina]

the state of not being in a relationship, A.K.A being single. [Singleness] is usually characterized (if the person does not like [singleness]) by depression or [pissyness] and may be confused with PMS in women and [BMS] in men. It may also be confused with simple perversion, as the afflicted person usually acts somewhat perverted, due to the deprivation of love.

One of teh worst things anyone can ever have.

[Ernesto]

attention to one thing:

[Sommer]

Singleness(noun) the quality or state of being single, or separate from all others; the opposite of doubleness, complication, or multiplicity. Singleness(noun) freedom from duplicity, or secondary and selfish ends; purity of mind or purpose; simplicity; sincerity; as, singleness of purpose; singleness of heart.