I believe that a relationship can happen when you least expect it and things do happen in our lives when we least expect it and as discussed here, I think it is when we let go, then God enters into the picture and it happens.
It happened to me with a job I was aspiring for - I had all the qualifications and experience and had done it before but it eluded me. Then I decided to do something else and I got totally involved in this new role, when I was offered the job I was seeking for such a long time.
It happened to me years ago, when I was keen to go for higher education and was saving for this. I would have to save for over ten years when I was approached by a trustee who sponsored all my fees and hostel outgoings. I had not even known this man and it happened in just a few months after I had started saving.
It happened to me again on CM. I gave up looking for a partner after I found that I was not getting any responses and since where I live (in Australia) there are very few in my age group. Somehow it never clicked and I gave up and decided to enjoy CM more for the support at the forums, when I nearly fell off my chair to get a message from someone, who appeared to be my ideal match. We are now in a relationship and its uncanny how similar our interests and our journey is.
So yes, it can happen when you least expect it.