A girl that i met over a trip last weekend invited me to her Yoga class and then dinner tonight. I ended up not going to the Yoga class because i fell ill. I messaged her to let her know this and haven't heard back

I'm sure she doesn't care, i just hate not following through with plans. Anyway, the dinner is tonight and i still haven't heard from her. She lives in a co-op so they have a big dinner each night. I would just show-up but i don't know anyone but her

She is one of those people that you would be lucky to know and blessed to have as a friend. What should i do? Do i message her again or just not show up. I don't want to appear as a stalker or crazy woman. I didn't get to get her phone number, so i can't call...... This is really bothering me because i am not a flaky person AT ALL. If I make plans I like to follow through. Any advice is welcome