Realistically, it would be impossible to conduct any sort of meaningful relationship with a pornstar, knowing the sort of things your partner gets up to on an ongoing basis. Aside from that, one has to remember the difficulties that would arise with family members if you were planning to take the relationship to the next level (i.e. cohabiting, marriage). Plus there's the fact that you'd be tormented by a perpetual hard-on - cos pornstars are hot! Every time you saw her, you'd want to have sex. It just wouldn't work.