I know how you feel, it hurts doesn't it?
When the person you love leaves, or for some reason things don't seem to work anymore at least one person gets their heart broken. It sucks, it really really sucks.
First, you blame yourself, was it something you did wrong? You question if you were good enough.
You feel like doing absolutely nothing. Just to lay in your bed all day.
You don't date, the opposite sex suddenly disgusts you, and honestly, nothing could compare to them.
But here's the thing about breakups, if it is truly meant to be, you will be with that person. If not, then you are better off. Someday you will find the right person for you. Someone who will understand you, someone who will fight for you, someone who will want to be with you! So hold on, take a breath, things may be crazy right now, but just give it time. You will find your right person.