I have split with ex but still having to live together. However he has stated letting out the loft room with Airbnb whilst we are still there. Not only is he keeping all the profits. This is also a massive safeguarding risk. He is inviting strangers into our home without my consent. The children are young and we don't have locks on the doors. I have contacted Airbnb but they are being very apathetic. The house is jointly owned by us as tennants in common.