My Prayer and God's Response

I am amazed at how God works in our life to answer our prayers. At the time of my divorce, I prayed for another son. I even told God how to answer my prayer. Lord, there are quite a few single moms who have a son who needs a dad. I told God just introduce me to the right woman, and I'll take it from there.

In reality, every time I met someone who fit the bill, something would happen, and they would disappear. What's up, God? Why aren't you working this out?