What should I have done?

            Yesterday, after my class finished. I met my old friend in the street drove a motorcycle. I said Hi to her and she also  smile to me. I missed with her, actually i want stoped her and talk with her. Then  i just walked again, because i didn’t think that she would stop. After i  arrived in my boarding house my friend who I  met in the street sent me a message. She said that me was arrogant. I didn’t know why did she say like that. So i asked to her, and she told to me that after i said hi to her actually she stoped and came back to look for me. I was reallly sorry to her, because i didn’t think she would came back to look for me. But she was still angry to me, , , ,  So what shoul i have done?