Visit your girlfriend again

You called your girlfriend and asked if she was free now. After a positive response, you immediately went to her home. Today you decided to just sit and talk at her house.

Holly looked cute as always. You began to tell how the working day went. About what kind of goods you sell, you tactically kept silent. You never even talked about sex or anything like that. She, in turn, told how her studies are going.

In general, everything is fine... except...

What happened?

Nothing really important. It's just hard for me to find a common language with classmates. You know I've always had a hard time making friends. I just lack confidence...