Sure, give her one last text. As long as you're sure her phone is still working/ in service. A guy text me one time during a period when I broke my phone. So I had no clue he invited me out, and he had no clue I had a broken phone. eventually we saw each other and he understood why I hadn't text back lol But back to you, go ahead and text her again. It won't hurt :) good luck with it, hopefully you get a text from her back!