* Episode 63, "The Talent Show," ends with Kim and Ron sharing a dance but not a kiss.
* Episode 64, "Graduation," has them going to prom together and kissing, but it's never stated that they are officially dating.
The show leaves their relationship ambiguous. Fans have to rely on their own interpretations, but it's clear that their friendship is growing into something deeper.
It's worth noting that the writers probably intended to leave it open-ended to allow for the possibility of more episodes or even a spin-off series where their relationship could be explored further.