Quote:
I made a joke about not wasting my time, she mentioned that she didn't think she was looking for a bf but loved to make friends,
That was already very clear. She doesnt want a bf. So she wants to be single. What is it you can a lot when you are single?
The date was good, so there was at least a little bit of interest. Your ultimatum text was bad. She already told you she isnt looking for something like a relationship.
So to me it seems like you have been 'aggressive' in the wrong way. This one wants sex for the time she is single. You did not make clear to her that only sex is also ok. In this case, i would have been more direct. Telling her she is very hot and sexy, and flirt on a highly sexual level. when you presume people are busy, leave them alone. Like in their finals or if you know they need to study, leave them be. Its annoying.
better luck next time
ciao!