Ultimately, sooner or later in life, you are going to have to figure out what YOU want - not what he needs, not what he wants, not what you can do for him or wish you could do for him.
I don't understand what you mean by giving off the vibe that you might fall for him? or confuse him because your head will stop you? Do you want him to love you and pine away for you while you don't intend to be his soul-mate?