While Liam got drinks, Rose typed up a text to Donna about being out for coffee with the Doctor. She hesitated a bit before sending, though. This wasn't exactly a 'Yay date!' moment. And Donna had seemed a little bummed about no one from her dreams being around, so the timing didn't seem great. Hawke probably wouldn't be giddy about this, either, so soon after Rose's break-up. Rose didn't expect a lecture from her friend, but she didn't think they'd be braiding each other's hair and giggling about it tonight. The whole thing was a little weird, and Rose ended up discarding the text by the time Liam had finished getting drinks.
So she didn't have anybody to text about it. Once upon a time, people didn't use Foursquare to tell the world where they were at every moment of the day. Didn't mean she wasn't going to try and enjoy herself.