Complex sentence: This remained the status quo in the comics for decades, though Lois did warm up to Clark for the most part; yet their relationship couldn't really advance with Lois left out of Clark's secret and the Clark Kent's persona being a disguise.
Split into simpler sentences: This remained the status quo in the comics for decades, though Lois did warm up to Clark for the most part. Yet their relationship couldn't really advance with Lois left out of the secret and with Clark Kent's persona being a disguise.