There isn't enough information aside from the generic question to really give you "tailored" answer to it.
I agree with dashingscorpio, "Why do you want to be with someone who doesn't want to be with you?" Trust me, I have been there and I wanted someone back, my husband, and looking back on it I am kind of ashamed I was like that. Its degrading yourself. You are worthy of someone and you are worthy to be with someone that WANTS to be with you.
Everyone over generalizes the soulmate issue but I do believe that they exist just that we get caught up in situations like yours, spending too much time looking at the door that closed and not the window that opened. Or looking behind us instead of seeing that someone that is meant for us is standing in front of us. And trust me, been there too, I was just lucky enough that after 15 years he walked back into my life, and I learned my lesson, I won't be looking anywhere but right in front of me so I don't miss a chance to be with soulmate.
Dashingscorpio ir right that the soulmate wants what you want and feels what you feel, and it won't stop either. That's one reason we were able to figure out on our end that this wasn't like everything else...we may never be anything but friends but I still have my soulmate in my life in some capacity. Walk away from the past and stop looking at something that obviously wasn't mean to be.
I firmly believe that everything happens for a reason. I am not someone to sugar coat something to not hurt your feelings, I tell you what I think as nicely as I can. Truth is, you are so busy wallowing in this breakup that you aren't healing from the hurt to move on to something else, you can't grow as a person and can't be good for yourself (let alone someone else) if you don't do that.
We always look back at think of only the good things, we forget the bad or how the relationship wasn't making us happy. We think we won't find anyone that did this or that...truth is, we broke up for a reason. So take advantage of the time you have single and work on the person you are. Love yourself and respect yourself and learn how to find that inner strength and peace that you don' tneed anyone in your life at all...but you can enjoy and benefit and give something back to it if you do end up in one.
Good luck and I truly am sorry things didn't work out...if anything, heal from it....move on...and maybe you can be like my first husband and I are...we are really close friends.