Real Friends ...

People will almost always be your friends especially when you are doing well. Because of the shallowness of humans, they want to associate with you when you are okay then abandon you at the time of need especially when those friends are really not friends ...
The funny thing with life is that everyone has their ups and downs and however wealthy you may be, you will need to lean on people at times. No man is an Island.
That is why we are told to choose friends wisely. There are those who are there to enjoy our misery, there are those who find us as competition and there are those who genuinely care.

The Competitors ...

These are the friends who feel threatened by our successes. They feel jealous. The are afraid that they won't meet with your success level. It terrifies them and they get so jealous they want to sabotage any successful project that you have. Such people need space. You are not running away from them by giving them space. You are shutting them out. Why? You need a positive environment to thrive  and these people just make it impossible for your environment to be conducive. Stay away from such people. You have nothing to prove to them. They're just desperate to prove something to themselves. Why should you care what they have to prove?

Those That Enjoy our Misery ...

If you have such a pal, run!
Truth is, that's a person who derives pleasure from your pain. Its psychotic behavior and there's nothing you'll ever do to win their approval. Don't even try to win it!
Such people have had it rough in life. They think everyone has to go through hell in order to get to where they are if they are doing well ...
They are the people who expect life to be fair when it never is and get personal when the bad luck turns on their door rather than yours ...

Those That Genuinely Care ...

How rare are these gems. You have to dig through mud to get to them. They come when we least expect them and they may come so simply and subtly you can almost miss them. They say be careful that you don't miss a diamond when looking through rocks which are worthless. Anyone who sticks by you when you are down in the dumps is worth a chance. You just need to be still and watch. Sometimes, patience is all that's needed to sort out real friends from the rest ...