Whatever the situation, she should make a clean break. how would she like to be in the wife's shoes??? as far as i am concerned, there's no justifiable excuse for dating a married man. his family concerns are none of her business even if the man doesnt think that way. please advise her and if she doesnt take it, all the best to her. after all, whats around comes around; and what you sow, you will also reap. she should consider her future too.