I was recently accepted by a university as a PhD student. During the whole process, my potential supervisor agreed to supervise me along with some of his colleagues as my co-supervisor. Although, I have been accepted as a PhD student by the university, but I didn't get the scholarship. I a mentally as well as financially prepared for the expenses. But now my supervisor is saying that I should decline the offer. I told him that I can manage my expenses, but in every mail he is giving me some other excuse for not accepting this offer. I am confused now as to what I should do. Since the graduate school has accepted me, now it's up to me whether I should accept or not. But I am not able to understand why my supervisor is not willing to take me.
Any suggestions for what should I do now are highly appreciated.