I urge caution in telling one of those guys anything. I would not rush anything and I would wait until I felt comfortable telling them any specific thing. Rushing things with a therapist is not, in my opinion, a good thing to do. Some things take time. I do not believe in telling therapists everything. If you want to do so and feel it is reasonably safe, then sure, go ahead. But to do so without some feeling of trust and safety is not a smart move from what I have seen.