So I met this girl at a school event and got her number. The interaction went okay but I felt that I was the one keeping the conversation going. I texted her something relating to what we were talking about and she took hours to respond. When she did respond, she sent me a pic of herself talking about how she was dressed for the joke I made. So I kinda teased her and she then talked about how she thought she was getting blown off for the night by friends or something. My dumbass didn't know what to respond so I just said that I was stuck at home doing homework. She hasn't responded for almost a week now but I've just been so confused on why she would send me a pic of her and then seem like she's not interested at all. Should I try to restart the conversation or just leave it? Any advise?