No. It's normal that people do go on to form new reationships after a
separation and that where
there are children, their parents' new partners will become part of their
life.
Why are you losing touch with your children? I would
sugset that you focus on your relationship with them, nottheir relationship
with others. Perhaps you can look at increasing the amount of
contact you have, eother by
way of direct contact or by phone calls, e-mails, Skype or letters,
depeding what they are comfortable with.
although it is very
hard to do, the children are likely tobenefit f you are able to demonstate
to them by your behaviour that you are supportive of your ex's new
relationship - that way, the children will be able to be relaxed and
comfortable with you, without worrying that they have to be careful what
they say, or being put in a position where they are the centre of a tug of
war or feel that they have to pick sides.
Put yourself in the
same position, and ask whether, if and when you meet someone new, you would
want your cildren to be able to feel confrtable with her to and to form a
relationship with her.
If you and your ex have not yet sorted
out a finacial settlement, then thefact she has a new partner may be
relevent to that.
Forum 
England and Wales 
Australia 
