O Henry's stories have a vivid range of stories to tell. Love, in its different forms, hope & despair, unprecedented nature of future and whatnot.
Love can be sacrificed for your partners' happiness, without making it evident, the bond of love can be strengthed even with the last strand of the thread if both partners and willing to try, love does not require fancy clothes and lavish life.
Love can also make one a cunning planner, some just want to find true love but are completely ignorant about its immediate existence.
Above all love needs time to grow but at the same time, it can also fade away with the ticking of the clock.