need clarification

I've seen 8 episodes and in the 7th it was down to Tanika and Melissa, but the 8th (and final) episode features Mark and Melissa ? The guy had already been "snip snipped" earlier. Did I miss something ? Was he also put back on the show like Nakeda ? And whatever happened to Tanika then ?
I'd appreciate it if someone could lighten me out. Thanks.

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...and God said "let there be mutha****** Snakes on a mutha****** Plane !"