Okay...put yourself in this person's shoes. You're a kindhearted person. You talk to a certain person somewhat frequently, and...

Well chances are he doesn't want to lead you on any more! He doesn't know how to say what he is feeling without hurting your feelings and then when he gets an email that is talking all bad about yourself he doesn't want to get caught up in a mess that seems as though someone is trying to play him to get what they want by sympathy or fear that the person may do something to themselves "if" they don't get their way! I would have to say that despite the fact that he did not email you back or even let you know that he got the emails ~ chances are that was his way of letting you know point blank that he didn't want to talk to you. There is always the chance that he sent your email address into spam mail and never got any of the other ones after he got the first one~ possibly blocked you because he no longer wanted to interact with you. There are always a million what if's.

So, I've gotten one response so far suggesting that my actions were inappropriate. I can't fault the person's judgement, since they don't know the whole story here, which I'm not telling here... Before anyone else responds, one could maybe argue that I shouldn't have e-mailed the person (or maybe not), but please take into account that while this person's actions towards me were not inappropriate, they were definitely such that they could have been misinterpreted...is it so horrible of me to ask then for some sort of acknowledgement of my apology?

maybe cause you dont want to encourage them to write to you

You seem to be getting mad because you don't like our answers. I think most of us went back and read your other questions and see that you appear to be obsessed with this issue since you have been asking us about it for a month now. You emailed, you apologized, he didn't respond, and you need to back off and let it go. What difference does it make now who did what? It's over, leave the guy alone.

I imagine they do not respond as they do not wish to encourage any further contact. They don't want contact so stop trying.

If I understand correctly there was nothing for you to apologize for or be rough on yourself for so the fact that you did would appear very strange to that person who likely had no idea you were attracted to them. So to me it makes you seem somewhat neurotic so not someone they would want to interact with.

They did answer by not responding. They are telling you to leave them alone. If they wrote you back then you would have continued writing them. I'm guessing this person you keep hounding is your teacher. Back off and drop it because your continual emails are totally inappropriate. They are right to ignore you.