1) Your boss doesn't care. Go to work. Crying in the bathroom is fine, but not in front of anyone. Keeping busy helps immensely and works wonders for your mind.
2) Your best friends aren't there for you like you are for them. They'll leave you crying so they can see other friends.
3) You're going to shake profusely. Rock yourself to sleep. Go to bed holding yourself and you'll wake up the same way. For a second, you'll still think it's him.
4) Your foot will tap all day at work, while your hands remain glued to your phone, just in case.
5) You cannot keep calling him your boyfriend or mistake this from a break, unless that's directly what was said. It'll take time to claim you are single again, but denying your love has ended only prolongs the pain.
6) Your nails will bleed from all of the nervous biting. Your lips probably will too. You'll have scratches on your body from grabbing yourself so hard pretending to be him. You have to stop tearing yourself apart.
7) Once you get home from work, cry. Cry all night and let it out.