Ill try to keep this short:

I threw a houseparty (6 ppl), invited a girl, managed to isolate (somewhat, as it was all in 1 room), talked to her for quite some time. We were vibing, found out a bit more about each other blabla

I ask for her number and tell her about this new place in town that ill take her to next week and she says sure.

I send her a message with a specific day (blabla lets go that x on friday blabla). Message gets read within 10 minutes, response 4 hours later with basically "thanks a lot but not lookin for something like that right now, best of luck blabla".

Now ive read the message after bout 10 minutes, havent said anything.

What is my question? Should I have done anything differently up to this point?

What am i going to do now? Id intially just say leave on read. This does not seem like a shittest, to me its a full on rejection so i just have to move on, right?