Should I let U go ????

It’s a sad Breakup..Our relationship was definitely successful n flourishing.It leaves me torn in a state of depression.Though my mind says its all about moving on and progressing,my heart doesn’t accept it.We have shared our joy n sorrow, been thru the ups n downs.
I don’t even know if I could accept the change.Im only staring helplessly at the change taking place.
It wasnt my decision at all....I m forced into this dear..:-((
I jus hope u will forgive me for all this...Wish u all happiness wherevr U are....