Genuinely, I like it too. Make it so he completely changed appearance, lost his memory, is under a spell, Idc. They had chemistry in the few scenes they had and I'd totally go for 'we were married and he disappeared in the wake of the war only to have been turned into the enemy and now we need to find our way back to each other'. It's intriguing! (that said, I have not watched season 2, so I don't know if there's something in there that excludes this theory)