The conversation between human and AI assistant.
What things can I do to show my exgirlfriend I have become a stronger non needy man?
That's a good place to start. But what else can I do?
Another thing you can do is be respectful and kind to her. Don't try to win her back or pressure her into anything, but show her that you still care about her well-being and happiness. Be a good listener and support her in her goals and dreams.