(Aka what's it like to date a fairy)
Fay has no deep experience in romance or know actual knowledge on it. She knows what love is, but she's never really experienced it or understood it only heard words from others' experiences
Fay harboring crush towards person
• fay would be more flustered and shy towards the person, sometimes turning their face away, trying to hide their flustered face. It's somewhat subtle to notice it
• fay words 'I love you' would be less frequent to the person as she feels like those words of affection are becoming more true than just platonic affection
• fay would give more gifts towards her crush, even taking things from her rock collection to try and impress them. She sometimes priotize giving gifts to her crush first before her friends. Gift giving is very precious to her as fay will give her the most precious and rare items she mostly never shares, so it's mostly part of her love language. Almost like giving her heart
• Physical affection is a huge part of fay as she will be more affectionate and closer to the person her hugs, patting, nuzzling, and even simply relaxing on the person chest her time with the person she adores will increase almost wanting to follow them everywhere they go.
(What if you confessed to fay saying 'I love you'?)
Fay would be more oblivious, not in a childish manner, but more so she wouldn't understand the deeper intent behind those words as she usually utter those words very frequently towards the people she likes which is her 'freinds' or strangers so you saying you love her would translate into saying 'thankful to be freinds' more so.
You would have to make your intentions clear and most likely explain that you like fay in a more romantic way than just a friend. It would take a few minutes or seconds for fay to finally realize that you actually love her in a romantic sense.
(What if you give fay something?)
If you give fay something that's supposed to be a romantical gift or date gift, fay will always cherish it and keep it stored away in her rock collection as she thinks your gifts are deserving of standing tall and proud because how beautiful or shiny they are! Fay is most likely to remind you of your gifts and how she adores and cherishes each and every one of them, even keeping them pristine and clean!