Her: Sounds like a lovely evening 
Her: I could get on board with that
Student: Shoot me your number and we’ll organize it 
Student: Wait, are you a red or white girl first?
Her: That cannot be a dealbreaker
Her: Unless you drink rose
Her: (Gives her phone number)
Student: Messaged
Student: Hey Anna, it’s Alfie from the thing
Student: Don’t worry, not a rosè drinker
Her: oh that thing
Her: I didn’t think you would be, I bet you’re a red wine drinker though
Her: How’s your day been?

I am a red wine drinker, you know me so well already lol
 This message implies a level of familiarity and closeness between the girl and the student.