Well I have been asking my girl friends, what is the most romantic thing happened to them / what is Romantic for them.

I think I got the main factors.

Things that are done to show that you care and love her (not practical tho, practical stuff usually isn’t romantic but its still caring tho)

Dim the lights, candles, sun set, sun rise, ( Low light ! )

and if she don’t love you, nothing is ! If she does Everything is !