It's going to be Nxyly who'll spell it to Kara in a very public place most likely that she' has feelings for Lena isn't it
since nxyly & kara are connected & sensitive to each others feelings, kara will see lena for the nth time in the tower, & she'll flush because wow, lena's dressed nicely in a suit, high heels & a high pony tail, & nxyly's going to snap because WHY does she keep randomly feeling horny all of a sudden
Kara literally looks like she's about to risk it all and kiss Lena right there in front of everyone! The ways she looks and Lena, the way she glances down at the her lips, the ways she leans in! The tension!! The ACTING CHOICES! This was a MOMENT.
I just want to point out (a) not only how Kara literally LEANS IN before Alex interrupts, but also (b) how she literally glances at Lena’s lips. My god.