Finally, some progress(?)
If she's calling him Hikoboshi like he thinks, that sounds romantic since Hikoboshi is Orihime-sama's lover... until you realize Tanabata is about the archetypal star-crossed lovers legend where they can only meet one day per year on Tanabata.
These two better make that one day count, and I mean count: they have several hours in a day to enjoy to the fullest