Some people just don't want to be happy. It's more like they want everyone else to be miserable too. People who would enjoy their failure more than they would enjoy their own success.
In short, it is to be toxic, the difficulty of this situation is that it seems to have no solution, perhaps it is a mental state and should be attacked with the due attention of a specialist! I believe that in such cases we must reach out to this horizon, thank you for sharing.