I am guessing you may not be very old or experienced in the dating world? Both your actions and the reactions of you and your silent secret love man seem very shaky and unsure. This is just the start to understanding what makes a man's brain work (or not as the case may be)
Keep living your life to the max, do everything you want to do, get out there in the world. If this relationship incidentally suddenly develops then just see where it goes, have fun, and keep it simple. Share little bits of life together gently.
A day at a time. Don't waste too much time fretting about someone not responding, do your own thing. You will know very quickly whether someone returns your attentions.
If they can't articulate (give someone space, we've all had those awkward moments) But if they can't give their own time or they are so frightened to reply back as a habit then it is probably safe to assume they aren't ready to have a relationship. Move on and find those stable, grounded and funny men who do (I've not even mentioned the 'nice' word) That's the best bit of exploring life; spending your time finding the man with the right attitudes to fit your own, the right attitudes to life, the right attitudes to others (and yourself), to religion. Find that man who will give you respect, give you space and help you reach your own ambitions no matter what they may be. But that often means junking a lot of men along the way who just aren't up to standard. Be ok about that. Keep the bar as high as you possibly can, and one day you will meet your match (and that won't be a secret love)