Ive recently found out that the attic room my dd (17) is staying in at my ex husband’s OW’s house is basically uninhabitable. I thought it was a fully converted room until my daughter said she was cold and I asked about heating. Since then I’ve found out there’s no heating up there and the window doesn’t open which is a huge risk if there’s a fire. I said to my dd I really didn’t want her to stay over but her Dad guilt trips her if she doesn’t stop. I ended up in a huge row with ex. I tried to start off reasonably but he reverts to being nasty if anybody tells him things he doesn’t want to hear. He basically said I’m a tit, who loves the sound of my own voice and told me to piss off. I’d laugh the insults off because they sound so ridiculous but if I’m honest I actually feel really demeaned. My daughter’s 17. I can’t stop her from staying but now I’m worrying about damp and mould and respiratory illnesses. Yes my ex has always been unreasonable and awkward with a nasty streak. He can also be charming and manipulative. Please be kind. I don’t know what to do. I’m having a really hard time at the moment with other difficulties so if you haven’t got anything nice/productive to say just please don’t say anything at all.