It happens it was the first love it aches.
But you love this person from 10 years one day you also cherish your future with him.
Focus on one you have not on whats gone. It's human nature you feel bad but cherish one you have noe
Have a party alone drink shout cry if u want to vent things out I am sure you will happy and less burdened. Its human nature bt you will be fine with time