I just ended my 5 years old relationship

I've been thinking on our relationship nowadays and I realized that I'm not happy anymore and even though I wanted him in my future, he was not sure about the future. He was always avoiding stuff about future nowadays and I thought "okay I can't do it all by myself, it's something for 2, not for 1" so I've broken up with him. It's not the first time that we're breaking up but whenever our relationship ends, I always have a feeling that I won't be able to find someone who will love me this much and who I'll love this much and who I won't make a special bound with like this one. My mind says if it's meant to be, it'll happen someday. But my heart and memories make me cry. Have you girls ever had something like this then found out that you're actually wrong?