Why can't I get over him?

[ÜB3R]

From what i can see here you still have some feelings for this person the best thing to do if you have no chance of being with him in a relationship would be to try and mix with other males and keep yourself occupied as much as possible as times sitting alone can sometimes bring up memories as your mind has nothing else to focus on. Hope you can get over this person and find someone suitable for yourself in the near future.