Most Helpful Guy
I'm going to give it to you straight mate! You will feel the entire crushing blow of being abandoned and broken up with today. Trying to act like it didn't happen or it doesn't affect you a day after never did anyone any good.
Watch a few love movies, cry, talk to a friend, pig out on ice cream, and just get a grasp on what happened and where your emotions are today. I'm sorry this happened to you mate. But you will get through it. And with it being so fresh, there's a very good chance they'll return before the week/month is out, if it helps any :).
But once you embrace what is today! Then you continue your daily life. No need for a drastic new change to try and hide what happened. Now if there's something you always wanted to do, like skiing, a backflip, go for department manager, well you do that. So when or if he returns your confidence level will have a gigantic boosts that doesn't NEED him you know. Not to not want him, but you NEED him.
And I wish you the best going into tommorow :).