That is very tough. Love is very tough to get over but I can tell you from experience it does get better. Its only been 5 days and that may seem like forever right now but it takes a while for the heart to start to heal. The only advice I would give you is don't accept any communication from him if all he is going to do is give you false hope. His reasons don't matter because at the end of the day the result is the same. Give yourself the time and space to get to a place where you can think clearly about this. Then you can make decisions which are equal part head and heart and not all heart.

The pain of lost love never really goes away but we learn to deal with it but I wouldn't have it any other way. It may not feel like it now but you will look back on this one day and smile with fondness because every relationship we have in life prepares us for the next one and eventually the one which will define your life.

My heart goes out to you but I can tell you everything will get better in time.