I remember this issue terrorizing me mostly because I have an unreasonable fear of roaches, but the Steph/Bruce interaction is really adorable. I kind of like to read Bruce as someone who appreciates that contrast in personality, and even sort of craves relationships with people whose defining traits are polar opposites of his. In Steph's case I always get the impression that he doesn't really want to like her, or at least that it would be easier for him if he found her annoying or abrasive, but in spite of his best efforts he really is rather fond of her at times. Occasionally.