Answer:
Boundary Crossing
Step-by-step explanation:
Boundary Crossing can be described or explained as a situation that occurs when a person, specifically a professional involved himself /herself in a second relationship with his/her client. This second relationship is considered to be not exploitative or harmful.
In this case, the acceptance of Alice to attend Thomas' ceremony is regarded as boundary crossing, because that is a kind of second relationship with Thomas, which was her client, since it was different from initial relationship they were together involved in, that is, counseling.