I do not consider 讓步 == 投降. I read many cases, real or fictional, if couples in 冷戰, they might do something stupid. For example, if one is in critical condition and he/she phones the other but because they are in 冷戰, the other does not pick up the phone....
So I always choose not to 冷戰. Step back and say I am sorry will do both parties good. When she cools down and I will try to reason with her and she will be more willing to listen at that point.