Can u break up with my girlfriend over text?

i just broke up with her two weeks ago and we got back together not even a week ago but i dont feel the same way about her and i feel like i only ot back together with her cuz she guilted me into it by texting me (if she hadnt texted me i prolly would have never gotten back together with her.) i was goingto do it in person on friday but she was about to leave for vegas and i didnt want to ri her whole trip. but i honestly dont have the heart to tell her in person again i dnt know if ill be able to go through with it becuz i feel very very guilty after thigs like this and i dont if ill be able follow through with it also i know that this time we wont get back together becuz i am graduating from high school and she is going to be a junior so ill never have to see her again. and i dk if it makes a difference or not but we got back together over text