The science reddit has had a few studies recently on dating but I haven't seen anyone post them here. I thought I would put them up for discussion.

https://www.psypost.org/single-or-taken-the-personality-traits-that-could-predict-your-relationship-status/

https://journals.sagepub.com/doi/10.1177/01461672231225571

And this one on stress and increased feelings of loneliness.

A new study in Behavior Genetics provides evidence that a genetic predisposition towards experiencing stress is associated with increased feelings of loneliness. The research sheds light the genetic and environmental contributions to the association between stress perception and loneliness. Previous studies have consistently shown that loneliness carries with it a plethora of negative outcomes, affecting individuals’ mental, emotional, and physical health. However, pinpointing the exact risk factors for loneliness has proven to be a complex task. While demographic traits like age, marital status, and income level have been linked to loneliness, other factors such as unmet social needs and personality traits like shyness also contribute to this emotional state.

https://link.springer.com/article/10.1007/s10519-023-10176-5

Personality traits both preventing you from getting into relationship and making you feel worse about it when you don't.