The obvious reason is because someone won't date you while you're dating someone else usually. The less obvious reason is that when you're with the wrong person and the right person sees that is the kind of person you prefer to be with, which also defines you. For example, if a woman stays with a guy who verbally abuses her, and she continually tolerates that despite not liking it, that sends a message to potential other boyfriends, who would never do that sort of thing and wouldn't imagine themselves with a woman who puts up with it.
Comments