There is no differnce between "complete" and "finish". But when you trust a right person you are "complete" and when you trust a wrong person you are "finished."
The worst pain in life is when you see your life being spoiled by the one you trust the most and you can't do anything except standing quiet and asking yourself that.. Is it a gift of trusting someone or is it what I deserve..!!
No doubt, everyone needs to be careful in trusting people, wrong trust can cause harm but then they are short terms damages, whatever happens, happens for good and time only tells what is good and why...