Love is the joy of the good, the wonder of the wise, the amazement of the Gods.

Nothing here is described as calm. Love turns up as delight, astonishment and something close to bewilderment, which corrects the idea that maturity means feeling less. The steadier you become, the more surprising it ought to be that another person can still move you like that.

If a long attachment has gone quiet, the question is not whether the feeling died but whether you have stopped looking. Try noticing one thing about somebody you have known for years as though for the first time. Familiarity dulls attention, not the person.