单选题：There are two moments that Alice and Henry remember with exc

There are two moments that Alice and Henry remember with exceptional poignancy. The first occurred near the beginning of their relationship, when they looked at each other with the full knowledge of loving and being loved. Years later, they looked into each other's eyes and suddenly saw a stranger; their attitudes shaped by hurt and anger.
This couple came to consult me because they wanted to learn if there was any possibility of re-igniting the flame that had once burned between them. ① Both acted almost ashamed, as if they knew they once had something precious and had somehow betrayed it. ②
Alice and Henry asked me a question I hear many times in my counseling practice. Are there specific ways in which couples who remain happy in love behave differently from couples who do not? The answer, I told them, is yes．My own studies, as well as those of other marriage counselors, show that happy couples consistently exhibit these behaviors: They say, “I love you.”Happy couples express their love in words. They do not say, “What do you mean, do I love you? I married you, didn't I?”“ Saying the words,” one woman remarked, “is a way of touching.”They express their appreciation and admiration．Successful couples talk about what they like in each other.
“My husband had always been my best audience,” one woman said to me. “Whether it's something I did at work that day, or a clever remark I made at party—he seems to notice everything. He lets me see his pride and delight. I feel like I'm standing in the most marvelous spotlight. I only hope I'm as good at expressing my appreciation of him, because I'll tell you something: being loved is the second-best thing in the world； loving someone is the best. ”
They reveal themselves to each other. Happy couples share their inner lives with each other more than with any other person. They share thoughts, feelings, hopes and aspirations as well as hurt, anger, longing, and memories of painful or embarrassing experiences. They offer each other emotional support. Couples who are happy are there for each other in times of illness, difficulty and crisis. They are best friends and nurture each other.
They express love materially. Happy couples give gifts on more than just routine occasions, or perform tasks in order to lighten the partner's burdens. The cost of such gifts is not relevant. What is relevant is the underlying intention: to give pleasure to the partner. The reward is the expression of joy or satisfaction on the partner's face.
They accept demands and put up with shortcomings. Demands and shortcomings are integral to every happy relationship. So are the benevolence and grace with which successful couples respond to them. They do not torment themselves or each other over imperfections. Each knows he or she is not perfect. Both understand that their partner's virtues outweigh his or her flaws. They choose to enjoy the positives rather than drown the relationship in a preoccupation with the negative