They are difficult to find these days. Even the one who was with you previously, sometimes gets envious and becomes a backbiter.
When you start succeeding in life, it is best to tighten up your security, especially with colleagues and friends. People sometimes want you to remain in the same level with them or they just want to be better off. The heart of man is highly envious of his neighbour.
Those ones ain't real. The real ones hangs on, in poverty and in excess. Those are the true friends. If they can't stay when it's rough, we have a name for that. We call it a fair weather friend.