I haven't been able to watch ep 17 and 18 yet but I saw the preview and it looks like they'll be dating in secret…
It is pretty logical for QP to like LX as he seems to spent more time with her while KML keeps on trying by pampering her with gifts, not time as he only turned up at night
I think I can roughly guess how the following storyline will go!
It will be a time when KML can't turn back to be LX and by then only QP realized they are both the same person! This is also when QP falls for KML for the pearl to fully takes effect!
But i can't find the calendar yet