This is pathetic, but I can't seem to get over him.
Breakups can be tough.
I just can't get used to it.
If you're having a hard time getting over a past relationship you should think about trying to talk to someone about it. You shouldn't be letting an old relationship stop you from living your life and moving forward.
I'd like to go on with my life and stop caring so much about him, but it's hard.
A little counseling might help. Your relationship is over. It's time to move on.