You might just be afraid of intimacy because of past traumas, which is potentially why you're still single. That can lead you to sabotage your relationships and dating prospects, even if you don't realize you're doing so. "Our fears surrounding intimacy may manifest as concerns over someone 'liking us too much,' an understandably irrational reason not to date a person," Lisa Firestone, Ph.D., explained in an article in Psych Alive. "Or we may punish the other person by being critical, even engaging in nasty behavior, essentially making sure we don't get the loving responses we say we want." And that's not healthy behavior.

Of course, people have a finite capacity for intimacy, but, if you're really afraid of it, you're going to wind up pushing it away, subconsciously or not. "The reality is that most people can only tolerate a certain amount of closeness," she continued. "We are defended about letting someone else in. In effect, on a deeper level, we don't necessarily want the love we say we want."