S2E13 - Juxtaposition Paradoxical Dilemma
Who wouldn't want to meet their younger, hotter self? Think of all the things you can teach them and what to avoid. I thought older Kelly would tell younger Kelly not to cheat and older Ed would tell her that younger Ed is neglecting her and that if he doesn't change his ways, it would have negative effects on the relationship. Instead we just see them telling younger Kelly that it won't end well in the future with them being as a couple.
It seems the memory wipe failed on younger Kelly because she outright ended her relationship with younger Ed. This would drastically alter the timeline I think. What if Ed now becomes depressed because of the sudden cut-off after a successful date from before? Maybe he'll take up drinking and not become the Captain he was destined to be along with being suicidal and Kelly now becomes Captain instead.
The Kaylon on the other hand seemed to have recouped their loses since they are on the hunt for ships containing organic life. Why haven't they attacked Earth again with a stronger armada seeing how they already know the location?
The best part was the replicated dance floor with Yaphit pulling out all the moves his gelatinous body could conceive of and Bortus along with his mate screaming in a Klingon-like rage to what they perceive as a mating ritual dance mix.