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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lovesick
adj : languishing because of love; "strong men behaving like
lovesick boys"