Isabella Continually Refers to "Kyle" in What Often Proves to Be

Isabella continually refers to "Kyle" in what often proves to be lengthy tangents regarding her college years. The name itself evokes a high degree of passion. The group leader can/should:

A) Cut off the conversation as being irrelevant
B) Ask the counselee politely to return to the "here and now"
C) Ask the counselee how this person relates to present issues
D) Ask the counselee to break confidentiality in order to discuss personal aspects of Kyle