What led them to this expectation? Why do they want you to be different? I like to think my family and friends don't want me to be to be drastically changed after a long walk with new friends.
That is, indeed, the more significant question. Perhaps you have communicated some disappointment to them.
Ordinary people go on the camino, and ordinary people come home. I like to think that I come home a little stronger physically and maybe even spiritually (whatever that means), well balanced in my priorities, with happy memories and a readiness to continue with my life. I don't do drama.
Transformation, even if desired, is not that easy!