What is the most ambiguous thing you have ever done with a friend of the opposite sex?

The most ambiguous thing I did, which left a deep impression on me, was pinching her nose in a quiet library when I was in college.

In college, I participated in an inter-school competition with a girl in my class (very beautiful, class flower level) and won a prize. Later, our relationship became close, and she called me a best friend.

Before the college final exam, we often stay up all night together and spend the night in the study room. I bought snacks and waited for her downstairs in the dormitory. Every time she washes her hair specially, she washes it beautifully.

Sometimes, she will put two cans of Wangzai milk in her pocket. When she came to the study room, she handed me Wangzai's milk to drink. I will always remember the warmth on the milk box and her gentle and beautiful smile.

At four or five in the morning, we were so sleepy that we went back together. We walked side by side on a snowy night. I sent her downstairs to the dormitory, and then made an appointment to make up for two hours' sleep and have breakfast together.

We have eaten together many times in the canteen. She sat opposite me and we had a good chat. A brother smiled privately and asked me if you were with W (her name). I always see you together. I was silent for a few seconds, then shook my head.

We went to the library together. Once, I reached out and pinched her lovely nose, and she smiled happily. And this is almost the most ambiguous thing I have ever done with her. I thought she was beautiful at that time. I like her petite nose, lips, eyebrows and eyes.

When we didn't meet, our QQ chat was in full swing, and before going to bed, we didn't forget to say good night to each other. Sometimes, we will buy a few cans of beer and sneak into an empty classroom in the middle of the night. We'll drink and talk until the wee hours.

I used to love her deeply, listening to her tell all kinds of happy and sad trivia, listening to her story of cutting her wrist and committing suicide in middle school, and she cried in front of me. At that time, her tears overwhelmed me.

However, in the end, we fell out. We deleted all our contact information and haven't contacted each other since graduation.