My personal ones are: never asking me any questions about myself, constantly bringing up your "crazy" ex, and negging. Everyone has their own set of dating pet peeves that they simply can't stand.
1. From a_saffs
People who back out of plans. I have a very busy schedule so if I’ve put time aside for you and you cancel on me there is usually no second chance.
2. From ShneedlezKupo
LOL I've noticed a lot of the people I talk to love to talk about themselves and go on and on and never ask me anything then proceed to be like "wow, I really like you" and they dont know shit about me they've just been telling me their life story and accomplishments and think that alone is flattering lmfao.