What will you do if your best and dearest friend suddenly changes his behavior?

I remember that this happened to me just last year. One of my closest friend cut off all communication lines with me. I do not know the reason why. I can't recall anything I have done. I don't remember doing him any wrong. Well, I tried to get in touch with him but all in vain. I think that some friendships also come to an end. Whatever their reasons are for just walking away, we just have to respect it no matter how painful it is. Who knows? One day, we will be able to once again get in touch with them and restore the friendship. Perhaps, start all over again. Only time can tell..

this happens a lot for some reason and it seems like our friends always leave us when we need them the most. The best thing to do is just let it be...kind of like that saying if it comes back it's meant to be...you can't force people to do things they don't want to do. By moving on hopefully you'll be able to find time to make new friends.