情 is a heart 忄 colored 青 — the freshest green-blue in Chinese, the color of spring shoots and clear sky. Feeling is the heart in its vivid, living color.
事情 'matters' are literally 'affairs with feeling in them'. 爱情 is romantic love, 友情 friendship, 亲情 family bonds — Chinese sorts love into named channels. 人情 is the economy of favors that no contract can capture.
A heart 忄 in living color 青 — FEELING.
情人节 'lovers' festival' is Valentine's Day — but China has three: Western Feb 14, Qixi (the cowherd and weaver girl's annual bridge of magpies), and 520, because wǔ'èrlíng sounds like 我爱你.