I wouldn't say there's even subtext here. At least not yet, in the trailer it looked like but nothing sus has happened between these two yet. There's even the typical male who is in love with MC but MC is so oblivious, and obviously sometime someone will tell her (probably female best friend, who is always cheering on male with crush) "can't you see he loves you?!??!?". So no, I seriously doubt there is even going to be subtext.