Highsmith interested me a lot while writing my third paper and I couldn't help relating her to Gloria while I was reading Queenpin. Highsmith felt unattached to people and was similar to Gloria in that she never wanted a relationship with anyone. The difference is that she had sex and affairs with everyone, while Gloria refrains from it all. Highsmith had a love for destroying other relationships and loved to be the other women. She found some satisfaction in breaking love as the way Gloria reacts when killing Vic I think, a strong need to destroy. In an biography written about her there was a quote taken from Highsmith where she says, “I learned to live with a grievous and murderous hatred very early on. And learned to stifle also my more positive emotions.” I think this is the way the mobsters work, they all have the same mentality. Gloria is training her new girl so that she can learn to live with murderous hatred and stifle her positive emotions to become more successful.
Here's the interesting article on the review of her biography: Highsmith