Contact issues.

I haven't heard from my girlfriend in around a week. I have messaged her but no responses...should I be worried? I usually talk with her everyday.

Well, does she live far away or something? I can't imagine why she wouldn't answer if she was someone relatively near by.

Like crimsonsun2xseries says it depends. If they're someone you see in person regularly then yeah it might be an issue. If it's a long distance thing they might just be having issues with their internet connection. could be also they live with their parents they maybe got grounded and got their phone/internet taken away.