When ex starts dating again
"Maybe she's just a friend," I thought — until I saw comments from her friends like "he's a cutie! With the first ex, I still relied on him for emotional support the way I did when we were dating, and seeing him with someone else made me wonder if we could still have as close a relationship.
Plus, when I broke up with him, he said he refused to move on and planned to marry me — a promise he obviously couldn't keep, but it planted in the back of my mind the assumption that if I ever had a change of heart, he would be there.
Each relationship between two people is different, and what you had together during your marriage will never be reproduced with someone else.
The special things you had together were unique to the two of you.
The fact that you broke up wasn't a failure on your part; things just didn't work out, and they might not work out with this new person either. People don't choose people based on checklists; each person will appeal to someone for a different reason. Your ex's new significant other is not your replacement.
Your ex moving on is not a testament to your inadequacy. Your relationship was unique and special and nothing can ever take away from that.
Remember what you think and what you feel can sometimes be at odds, but it’s perfectly normal to feel some jealousy and even look for things to criticize in your ex’s new partner.
Though you may not understand the feelings you are having, they are a natural part of moving on after a divorce.
So, when you feel jealousy or discomfort over your ex dating, remember that no one can really take the same place in your ex’s life that you had. When that time comes you aren't going to waste time worrying about who your ex is with.