HOLY CRAP!!! ITS BEEN 48 HOURS! SHE HATES YOU! THATS ALL THERE IS TO IT!
.......seriously, if it matters that much to her that you did some illegal wall-art back in the day, then she's not worth it. Besides, its only been two days, she may not have time to check her e-mail. There are just too many variables in this little equasion. If the absence goes for like, a week (week and a half tops) then I can understand a little worry.