"staying together for the sake of the child" is an oxymoron since the child's needs are not best served by witnessing his or her parents go through the motion of a dead marriage, nor does it help the matters that the parents might subconsciously resent the child for causing their distress, even though it was not the child's doing but the parents' poor decision-making.

It is much better to work out a good co-parenting agreement.