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who was a bigger road block in Lois and Clark's road to a romantic relationship.
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I went for 'neither'. I don't think Mason nor Dan where real 'road blocks'. They were jut here to provoque a reaction from either Lois or Clark. To make them face -or word- their true feelings for one another. (to make it short, of course).

But if the question was "what"...then I'll go for Lois&Clark's own fear of relationship. laugh

Carole smile1