Answer:
Heartache of being alone.
Step-by-step explanation:
The poem "Outside the Eastern Gate" is one of the poems from the Shih Ching by Mao which was translated into English. The poem tells of a lover's woe of being alone and finding no happiness.
In the given lines, the speaker expresses his dilemma of not finding any girl who can capture his heart. Be it "outside the Eastern gate" or "beyond the Gate Tower", there is none who can get his heart set on. His dilemma in finding a girl to love left him feeling sad and heartbroken.
Thus, the correct answer is the third option.