Does anyone know the first time Lois referred to Clark as her best friend? Was it during the final two episodes of season one?

And did Clark ever refer to Lois as his best friend during the series? And if so, when was his first time?

Thanks,

ML wave

She was in such a good mood she let all the pedestrians in the crosswalk get to safety before taking off again.
- CC Aiken, The Late Great Lois Lane