I came across this drawing on 9gag and I think it explains the situation so well. This breaks my heart a little bit. I was so scared for Bucky his life during Captain America 2. Especially before Steve had seen his face. I just needed them to see each other before either of them died.
Made by Gmutal Thybius (link: http://9gag.com/gag/arprGLV?ref=fbp)