It occurs to me that allies we find at the beginning of our journeys may not be ideal for each other's needs later on.

For instance, If I am currently working on getting better from surgery, but I know I am later going to want to work on macrame, my allies who are also recovering from surgery may not want to follow me on that journey.

Is there a way for allies to 'break up' when they are no longer finding each other useful without it being hurtful?

Could there also be a way to introduce allies to someone new who you think they might get on with? (This might allow for as 'swap me for this guy' mechanic.)