system
A chat on subreddit /r/me_irl
human
You sound like the classic hopeless romantic type that unfortunately doesn't work in our modern dating culture. you don't have to necessarily fake being some aloof cool guy type, but at the very least you should try your best not to put your intentions out there so fast.

because you came on so strong you forced her to make a definitive decision on you before you even got a chance. but if you would have went on a few casual dates first as friends, some type of relationship could have naturally manifested over time. so next time do your best to calm your expectations and play it a little cooler. Also, no presents or love letters at people's jobs before the first date lol.
gpt
Thank you so much for honest feedback. It is so hard to get that irl. And I learned those lessons from this interaction. But to be honest I haven't asked another girl for her number in a few months.