There are two ways that adult male Darwin's bark spiders can avoid being eaten after sex. First, they can mate only with young and inexperienced female spiders who are like really bad at the whole mating thing, or they can subdue the adult female spiders with a bit or [sic] oral pleasuring in order to continue living their lives relatively unharmed.
I really have nothing more to add here.
Women! They can be so demanding sometimes. :)