Sure, but it gets much worse when it's a central plot point. A few shows don't have one, Stovetop League for example. Hotel De Luna is another if I remember right.But... but... what if she decides to pick the other pretty boy she tripped over?
But yeah I'm talking about shows where romance isn't necessarily the primary focus but it's still there, lurking in the background, ready to spring a sappy song at you...
As for the rest, you take the good. You take the bad. You take it all and apparently there you have a Kdrama.
Also, not allow. Girl trips into a guy's arms, they must get married. Also if you are driving you must take a U turn on a regular basis or you will lose your driving licence and without one of those how will be you able to kill something via road accident. Also if you are up to no good, you must dress all in black with a black baseball cap. There also must be wrist grabbing, piggyback rides and a trip to the hospital. I think it's a law or something.