Im 23 years old for first time I have a real girlfriend long distance relationship and im so worried she hasn't texted me in couple hour?

she was last seen like 16:00 pm and i was like message her 17:00 but it has been hours and she's still not there? i really miss her !!

Updates
6 mo
its my first time by the way just trying to manage, I don't know why she just left me like this all alone
Updates
6 mo
how do i gain her back?
Im 23 years old for first time I have a real girlfriend long distance relationship and im so worried she hasn't texted me in couple hour?
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