So, I was on a date with a girl - went well, we spoke for an hour and a half. After the date she told me to text her back if I liked her. 2 days later I text her to set up a 2nd date, she tells me that she has a cold and that we'll be in touch.
Few days later I ask her how she's doing... no reply. Day after that I try calling her, and she declines the call (probably - went straight to voicemail).
Should I pursue this further, or do I just leave it at that? In my past relationships with women I have never been ignored like that, so I have no idea what to do.
PS. She's 28 and I'm 23 (if that helps)