I have found that it is incredibly easy for people to fool themselves into seeing what they want to see. I've seen it happen with friends many times. Worse yet, I've observed myself make that same mistake only to smack into reality face-first later and then have to admit to myself that I had been fooling myself all along.

This is a manifestation of confirmation bias and it is not unique to BLs at all. Confirmation bias is a well known phenomenon that affects everyone whether they want to admit it or not. But now that you are more aware of it, you are in a better position to question your own thoughts and make better judgments.

As far as whether God has a plan for you in this boy's life, I can't answer that. But what I have discovered through the years is that God is rarely a micro-manager. Most of the time, he puts opportunities in front of you and leaves it up to you whether you will pursue them. In all likely-hood, there are many paths you could choose which fall within God's will for your life, and some of those paths include this boy.