This probably means that something you had planned to turn out well, ended up going against you. The scenario flipped it's self around and you were so said "betrayed" by your own plan or game.
Answer is choice a, hope that helps
I'd like to say its a conversational(<span>appropriate to an informal conversation)</span> and inquisitive(curious or inquiring) tone
Answer:
Both are important of coarse. In different cases different persons are important in different ways. But from my point of view both are important
Hope it helps! :)
Ordinary, daily life is more wonderful than people recognize.