Well, i'm not trying to be rude or anything. But if someone says ' I don't know' It simply means no. They are only saying that they dont know because they either dont want to hurt you, or they cant think of a nice way of saying no. It's obvious, because if he does like you, he would just say it.

well maybe, maybe he still needs time but as id say IF HE LOVES U HE BETTER BE BRAVE ENOUGHT 2 TELL U OR HE'LL HAVE 2 B BRAVE ENOUGHT TO SEE SOMEONE ELSE LOVIN U

If he doesnt know , then will who will know, you cant tell what he is thinking so its not worth waiting to for a respond , so just give it a little time until he "thinks" about it and well, whatever happens, happens ;)

maybe he need help in make the decision

Its hard to say if he does or not. Ifs its been over a month then either he's stalling or don't know what to say to you, in my opinion I would go to him and see whats up, and if he still doesn't have a answer then he's not worth it, time don't wait for no one and you don't have time to loose, but if he's worth the wait to you then its up to you, can't no one tell you what to do, you'll know when its the right time to say something

I don't agree

If he says he is thinking and cant give you an answer that should tell you straight up he is not worth the wait,

^ I agree.

it's hard to say if he likes you or not. give it some time, and when he thinks it's the right time to tell you his feelings he will. WAIT TILL HE MAKES THE FIRST MOVE.

He loves u but is embarrass to say so

he is dual minded.