That's the problem w/us women (smile)...we always feel like we can fix/change something. Don't waste your precious effort.
I have a hard time believing that he loved you, the way you loved him. Sometime what people call love, is not love at all. See we as human's should CHOOSE to love...love is not a feeling or emotion....all that 'meshy' stuff is eurotic/attraction -meaning that it's on a soulish level- we love with our 5 senses. But in the spirit, love is something so much more powerful...it accepts a person for their faults, puts them first, considers their feelings, being their in the good and bad, and offers encouragement.
I personally don't know all that your relationship entailed...but you do.