I feel very sorry for the predicament you and your daughter find yourself in.
You because you home life is disrupted by your worry about your daughter's situation and her unreasonable behaviour in your house; she because she is desperately trying to hang on to her marriage and your palpable dislike of your son in law makes her defensive and resistant to your advice.
Stop trying to advise her and forcing her to make a decision; listen sympathetically but tell her she has to make her own decisions and don't be drawn. Don't make your house so easily available to her next time there is an upset; suggest that running away solves nothing and in returning to her husband she has to accept the consequences.
If you pressure her into leaving him she will blame you; if she stays with him without a bolt hole she may well come to realise how unreasonable his behaviour is and take action of her own volition.
Desperately sad story of the assisted suicide of a grieving mother
What time do you get up and go to bed?
have you ever been mistaken for a race/ethnicity/ancestry that you are not?


