I hope the correct skills and tools are applied to mend the damage.
There is more than one way to ‘skin a cat’ as they say. Just because a specific ‘setup’ is common and appreciated by most, does not mean it is the best solution for all.
Balance is paramount, communication is key. When it goes awry, there is something up in the relationship. Talks to have, problems to solve. When you stop doing that, is when things start to get difficult, fall apart.
Talk to your friend, do not be afraid to ask about it - see if you can help, if you want.