Girl's Behavior

Is it normal not to text before a date?

A co-worker asked me to go to a concert together after I had talked about it. There has been tension between us for a long time but I couldn't do anything because she was married. She has been divorced for a couple of months now and the tension is still there, long gazing, standing very close to me, she touching my arms with her arms, playing with her hair, laughing, blushing all over her face when I smile at her. So would she consider going to that concert as a date because she wants to go together with me, just the two of us. It's also a long drive, it's in another state, so plenty of time to talk and we will spend the whole day being a tourist before going to the concert.
Is it normal not to text before a date?
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