My ex (8 years ago) asks other girls to mimick me on social media, 2 girls did it and one told me that he asked her to do it, what is his problem?

What could be his problem? It is 8 years ago that we dated. He married and divorced 2 times after me
My ex (8 years ago) asks other girls to mimick me on social media, 2 girls did it and one told me that he asked her to do it, what is his problem?
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