What is the best way to weed out someone trying to manipulate me when dating?
user
It’s good to always be on your guard when meeting new people, and to be careful around someone you think might be trying to manipulate you.  To be safe, I would suggest not sharing private information with people you’re just getting to know, and keeping a close eye on how the other person distributes their time, attention, and energy toward you. 

If you’re getting a stalker-type vibe from the person, it’s probably best to avoid them entirely, or report them to the police.  Two important things to remember, though, are to never engage in threatening behavior or violence, and to not meet with someone in private if you don’t feel completely comfortable and safe.
assistant
What is the best way to weed out someone trying to manipulate me when dating?
user
In these situations, I would recommend being suspicious and directly asking the other person about any untoward intentions.  If you are concerned that someone is trying to manipulate you, then it is important to trust your own gut instincts and listen to your inner voice, as well as talk to others about your concerns and decisions.  You can also read and educate yourself about red flags and other unhealthy relationships, and this will help you recognize when someone is trying to change or control you in a manipulative and negative way.  The best way to prevent manipulation in a relationship is to set clear expectations and boundaries with other people, express your true needs and feelings, and always take time to consider carefully the consequences of your choices.  You are entitled to establish firm and fair standards for your relationships, and it is no one’s responsibility to accept intentional mistreatment or manipulation.  If you ever feel uncomfortable or unsafe due to the words or actions of another person, please reach out for support and speak with a trusted friend, family member, or mental health professional.  There is no shame in seeking help for yourself or ending a relationship if it is not healthy or respectful, and you are always free to choose the relationships that are best for you.
assistant
What is the best way to weed out someone trying to manipulate me when dating?