[masonic]

  a good therapist will not hospitalize you

In the USA, anyway, a therapist is legally required to intervene if s/he sees the patient as a threat to harm himself or others.

[exolymph]

It's more of an imminent threat thing than "I want to die sometimes"; the latter is very common for therapists to encounter and help their patients work through. (Ideally — not all suicidal feelings can be worked through.)