One of Scorpio's main needs is intimacy, the real kind of connection that allows you to really get to know someone.
Very often, this gets confused for just sex and conversation, and it's very possible that this hunger for closeness might drive you to experience hollow and forgettable encounters.
The truth is, as hard as it is for you to know it, most people don't know, haven't experienced, or are afraid of being this exposed. So how are you going to figure out if you should get involved or no?
Trust your instincts, Scorpio! They are your best tool! If you get the feeling someone is incapable of this wholesome togetherness, might not be a red flag for others, but it is for you!