Demons will not fall for a certain human. Although some may be seductive as a succubus/ incubus. Keep in mind that there are plenty role players on this website and in this world claiming to be demons or half demon meaning half breeds its fluff
Kuro, Demons don't fall for humans. A demon is a form of a spirit and they don't really fall in love with humans. They might have a fascination with you, or an interest, but I highly doubt a demon could even fall in love with a human.
If it were to be possible, then I imagine the feeling would be great due to the immense energy that emits from a demon or an angel.