OP again. I had another idea for the clone thing actually - maybe there are TWO surviving Bucky clones and There Can Be Only One.
Maybe they fight over Steve? Maybe they work out some kind of schedule where one is out burning down Hydra bases and the other is in bed with Steve?
They try really hard not to let Steve find out but uh oh, he just walked in and there are two Buckys in one room. This is gonna be awkward...