[bheadmaster]

Ressentiment is a real friendship killer.

It's one thing to be happy for your friend's success, it's another thing to watch your friend have all the things that you want in life but can't get, on a regular basis.

Of course, one could ask whether or not that friend has the responsibility to share his success with you, or whether or not it is right to feel that they do. Those are tricky questions, and asking them still doesn't stop ugly emotions from appearing. And since friendships are mostly based on good emotions, bad emotions cause issues.

Human interactions are simple in theory, but very complex in practice.