Well, maybe an overreaction, but I am a little sad... It gave him a bit of personality and I really laughed hard when he started macking on my panda...
I mean, we've got Stern-and-Battlready Varian, we've got Bleeding-heart "If I could only give more for my people" Genn, we've got the total zit-head that's Garrosh. Each NPC has this thing that really defines them in a way they talk and act.
Ji and his philosphy are all 'act now' and 'only regret not taking action' and I think the somewhat carefree compliments and such he was throwing around fit very nicely into that personality. I mean, nine times out of ten he'd get a slap in the face for his flirting... but what if the tenth liked him back and would've never acted if he never started?
Yeah... over-analyzing that there, but it just felt natural between the two major NPCs. Aysa was calculating and reserved, Jin outgoing and a bit of a flirt.