lovesick
Love-sick Love”-sick`, a. 1. Languishing with love or amorous desire; as, a love-sick maid.
To the dear mistress of my love-sick mind. –Dryden.
2. Originating in, or expressive of, languishing love.
Where nightingales their love-sick ditty sing. –Dryden.
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yearn·ing (yûrnng)
n.
A persistent, often wistful or melancholy desire; a longing: a yearning for romance and adventure.