What should I do next cos I do not know really?

I was talking to this girl before and it seemed like she liked me but in the end she changed her mind and just wanted to be friends so I moved on with her and unadded her on everything.

A day ago she added me on Snapchat again and we talk and she seems happy and stuff, she adds extra letters to her texts and stuff. I ask if she wants to meet at college Monday and she says sure, she then asks ‘wyll’ and I say you’ll have to wait till Monday and I have to be mysterious and she does the same when u ask and we joke around, but later on she sends me photos of her so I can lookout for her. A day after at like 5pm I message her and we catch up and chat and then at like 8pm she leaves me on opened and she hasn’t reached out or anything and I don't know what to do next so I could use some advice 👏. I was really looking forward to meeting her irl on Monday cos we’ve never met irl before and I don’t wanna not be able to meet her.

What should I do next cos I do not know really?
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