One approach to creating a dating sim in Twine using multiple (display:) macros and values associated with choices (in Harlowe).

Proof Copy: http://videlaisstudios.info/teaching/twine/DatingSim.html

Twine 2: http://twinery.org/

Tutorial Video Series: https://www.youtube.com/playlist?list=PLlXuD3kyVEr5tlic4SRe6ZG-R9OyS1T4d