Well, this begs the question: was the problem with him, or was the problem with you? Assuming that your crush is an honest person (that may be a big "IF", depending on the person in question), perhaps he may tell you, in a kind, winsome, and loving manner, what it is that prevented him from taking the "next step" with you. Perhaps he will be unkind, and yell, at the top of his lungs, a laundry list of problems he has.
You may not like what he has to say. Perhaps it really is "him and not you". What I do know is that in proverbs 27:6 it says "Faithful are the wounds of a friend, and deceitful are the kisses of an enemy." So, if you really want the truth, the only way to find out is by asking him, and hope that he's an honest person. Just make sure you brace yourself for the possibility of hurtful words, and recognize the difference between proverbs 27:6 and verbal abuse.
I hope that helps.