Love more impt that friends?

Yesterday someone whom I've view as a friend stopped talking to me. Although he send in an email to apologise, he didn't say the reason why. Only saying that he can't tell me the reason. What or who can affect him? I can only think of one. I hope he will be able to see things clearly. I am not in the position to say certain things ... If I say anything, I will become the villian instead of the victim ... Well, he has make his choice, let it be.