The first worst couple I think of is Cyrus Longworth and Sabrina Stewart these two were so antiseptic in their views of romance it was silly... in one scene Sabrina mentions after a conversation with Cyrus who was actually John Yager that he called her "darling" which is what Cyrus had never done, saying the only endearment ever expressed to her was my "dear", although this couple were well suited for lab mates as a romantic couple they are a far stretch for the imagination...
I picture their honeymoon as such...
shaking hands...Cyrus: was that good for you my dear?
shaking hands...Sabrina: most satisfactory, thank you.
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Another worse couple was definitely Judith Collins and Gregory Trask, with Trask being such a hypocrite in regard to serving the all mighty, when as he first walked into Collinwood his thoughts could be read in his face "I want this!" I wouldn't doubt that his plan to do away with his Minerva took seed at that moment! Judith was so visibly bitter and lonely that Trask was a shoe in for his con game... although I don't understand why Judith hadn't thought that perhaps she had become appealing to the eye the "Reverend Trask" once she had been named Mistress of Collinwood.
Considering all the pain Judith endured her reward and Trask's justice was at last given in the end.Â
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One other couple stands out as a worst couple, that being Adam and Eve, considering that these two were in part Adam from Barnabas' Vampire self who is evil, lusting after blood and killing to survive, wouldn't Adam have these same qualities of killing to survive and lusting after that which he desired?
And Eve... her essence derived from the pure evilness of Danielle Roget, wouldn't Eve also take those traits and so become just as evil?Â
if any couple was a match made in hell this was it. The one had to, in time destroy the other. Â