What a difficult situation. I think you are in an awkward postion as you
are not your ex's current partner or family member.
Has she had
any diagnoses regarding her mental health, that you are aware of? Do you
know whether she has a Social Worker or Support Worker herself?
How
old are your children?
You may find contacting "Mind"
http://www.mind.org.uk/
helpful - they may be able to help directly, or if no, may be able to
suggest other support networks.
I think it may also be worth
speaking with Socail Services to ask about any help of support thy may be
able to offer either you, her o r the children (as opposed to them
assessing the level of risk)
I am not a mental health expert my
any means, but in relation to her (irrational) fears, I wonder whether
acknowling the fears might be useful, even offering strategies on how to
reduce the (percieved) risk. The risk is not real, but her anxiety is, so
trying to reduce that, not be reasoning her out of it, but be recognising
that she is genuinely anxious and considering how that anxiety might be
reduced may help.
Obviously, this does depend to some extent on the
nature of her wories.
Depending on your children's ages, they
might benefit from involvment in a local Young Carers group (
http://www.youngcarers.net/) - also it may be helpful
for you to liaise with their shool(s) to make sure that the
school is aware of the situation, and
can be alert for anysupport the children need, and also so that they are
aware of your presence and involvment and know to
contact you directly if
they have concerns.