Dont like her either. When I first saw BvS I liked her, then after watching it again and again I realized she is too soft for the role. In a deleted Africa scene where she meets Jimmy she comes off more like Lois; but in the theatrical cut I always replace her with someone else. So I'm right there with you and your not alone.
But I stand by that they should have wrote her at least having some fight in her; not akin to Smallville Lois who thought she was Natasha Romanoff; but just at least trying to stand up.for herself.