moonstruck

/M UW1 N S T R AH0 K/
adjective
  1. 1

    Crazy or insane when affected by the phases of the Moon.

  2. 2

    (by extension) Showing irrational behaviour, especially of a romantic or sentimental nature.

  3. 3

    Made sick, or (like fishes) unsuitable for food, by the supposed influence of the Moon.

Synonyms

Source: https://en.wiktionary.org/wiki/moonstruck