Help me get over the love of my life

This is my first love but 100% believe we would of got married, he was perfect in every way imaginable and then after a year one day he breaks up with me to start talking to this girl at our college. She’s so boring ( I don’t get it ), but anyways it’s been four months now and I’m sure they are fake in love right now, but I’m not over it. I miss him so bad and it hurts so bad that he blind-sighted me like that, never in a million years would I expect that off him ( he was so in love with me for a year ).

I would love some advice on how to get over him x