Why does my girlfriend refuse to talk at parties?

Name: ArjunaDate of Birth: 12th May 1997Place of Birth: DelhiTime of Birth: 7:25 PM

My girlfriend paralyzes during parties. She does not socialize and fusses around, and she appears hard to handle even in the presence of her friends. She is not new to astrology and maybe that is why she has made her feel this way. I would like to seek advice in order to make her feel comfortable and sure in social situations.