Working at a Relationship

Why fight for something that only you hold as dear as you do. Only when a relationship is equally important to both parties, should it be worth fighting for. God knows I tried my best but my best was not enough. Inside I’m dying. It’s been nearly a year and I feel I’m sinking more and more each day with broken heart, broken dreams. I’m 28 years old and just beyond lost. I planned married, having my first child at this age. I’m all alone now. Could you please provide me with your views?