There are many reasons why it may be difficult for you to see your former spouse on the verge of getting remarried. Some, of course, may be mostly nostalgic—a longing for the "good old days" when you were blissfully happy together. Others may be based on jealousy, if you are being honest with yourself. Your ex has found someone that is not you, and no matter what occurred between the two of you, being replaced hurts. Finally, there may be more practical concerns for you regarding the upcoming nuptials of your ex-spouse, especially if you have children.
No Right or Wrong Answers
The most important thing for you to remember as you think about the impact of your ex’s remarriage on your children and parenting arrangements is that there is no manual for dealing with the issues. Changes are almost certain but they do not need to be seen as negative. As long as you and the other parent can communicate and cooperate, you can continue to provide for your child’s best interests, allowing him or her to benefit from the addition of a stepparent. You will need to find a solution or approach that meets the unique needs of your family, allowing all parties to remain involved as a valuable component of the process.
...