ここ kokoで deあなた anataに ni会(あ)う() auなんて nante夢(ゆめ)に()も() yumenimo思(おも)わ()な()か()っ()た() omowanakatta。 I never dreamed I'd see you here. Literal Here [at-で] you [dative-に] meet [surprise-なんて] dream [in-にも] did-not-think. なんて expresses surprise/disbelief about the preceding clause. 夢にも思わなかった is a standard idiom. A chance-encounter exclamation. reunionsurprise~に会う (meet someone)~なんて (emotional emphasis / such a thing as)夢にも~ない (never in one's dreams)
ここ kokoで deあなた anataに ni会(あ)う() auなんて nante夢(ゆめ)に()も() yumenimo思(おも)わ()な()か()っ()た() omowanakatta。 I never dreamed I'd see you here. Literal Here [at-で] you [dative-に] meet [surprise-なんて] dream [in-にも] did-not-think. なんて expresses surprise/disbelief about the preceding clause. 夢にも思わなかった is a standard idiom. A chance-encounter exclamation. reunionsurprise~に会う (meet someone)~なんて (emotional emphasis / such a thing as)夢にも~ない (never in one's dreams)