Lois wanted to trust Clark, really she did, but how could she trust someone she knew was lying to her? She just wished she knew how she knew. It seemed ridiculous that she couldn’t trust the one man Superman trusted more than her. Now that she acknowledged that she was attracted to Clark, trusting him seemed more important to their relationship. Not that she and Clark had any sort of relationship; she had made sure of that, but how could she not trust a man she was she was half in love with? It didn’t make any sense.
I wonder if you really want the double "she was" there. It sort of works because at some level this is Lois rambling, but right now it mainly looks like a typo.
