How do I stop craving validation from someone who once insulted me?

Why is there a constant urge to showoff that you are doing good in life, money & relationships when you are not to those who once insulted you? I am fed up by this behaviour of mine, there was someone who once insulted me way back in 2023, and then I removed her from all my socials but I wasn't able to block her on WhatsApp cause our family are friends, and we were pretty close before our fight. And after that I always wished to show her off that how much I have improved myself in 2024 and how good 2024 was for me without her. I have always stopped myself from doing it but it always comes in my mind. How do I fix this behaviour of mine?