Most Helpful Girl
I haven't been cheated on bc I'm in my first relationship. but I'm sorry you had to go through that :(
I assume this is your first relationship and so unfortunately, you'll always have feelings for her and that's okay, others will understand and won't judge you so there's nothing to be ashamed of!
with time you'll learn how to deal with your feelings but there's sadly not much else to it... right now you should concentrate on getting yourself busy to distract yourself, if you don't have friends; make some! doesn't matter if it's online or not :) go to the gym to improve yourself (not just for a better body) and it will also help in falling asleep at the end of the day bc you're dead tired lol. find some hobby's, preferably outside so you can soak up some sunlight. good luck!