Oh, my heart is breaking for both of them! I'm holding out hope that Lois can't go through with hurting Clark and will be honest about the mystery source so they can work through the situation together. If Lois is getting these migraines, if the secret she's holding onto is hurting her, maybe she'll think the pain is a sign that she's doing something wrong. On the other hand, she's so sure of her source, so trusting of it, that is seems difficult to believe she'll go against his wishes. Such a quandary! Waiting for the next part.
