spoony

/หˆspuห.ni/
noun
  1. 1

    A foolish, simple, or silly person.

  2. 2

    A foolishly amorous person.

adjective
  1. 1

    Enamored in a silly or sentimental way.

  2. 2

    Feebly sentimental; gushy.

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