There is nothing more important than the welfare of your children.  When you are headed for a breakup of your relationship with the children’s other parent, whether it be a divorce or a paternity situation, there are some steps you can take to protect your children.  You may want to consult several counselors, therapists.
A marriage counselor may be helpful if there is any to hope of saving your marriage.  If you are just not interested in that, you could involve a mental health expert in counseling your children to help them understand that they are not at fault in the breakup and that they are going to be ok.
If the parenting arrangement for the children becomes a contested matter, DivorceDeli.com can successfully use a mental health professional as a witness in the trial.  Friends and relatives as witnesses are helpful.  However, an expert witness will assist the court in determining what is in the best your children.
The expert can speak with your witnesses or hear from you a summary of what they are going to say.  The expert can also speak with your children and anyone who has counseled the children.  Depending on the age of the children, there can be psychological testing of the children that can be evaluated by the expert.  In certain circumstances, there can be psychological testing of the parents that can be similarly evaluated.  The expert can tie all of this together and explain for the judge why your parenting plan should be adopted.