My DC is living in a student house and the relationship between the house mates has turned toxic.
In the first year they lived in Halls of Residence and they all got along great, so decided to get a house together for the second year. All went well for the first few months in their student house, so everyone signed for a second year. Now a few months on, and 2 of the house mates hate each other. One of them is verbally abusive, while the other stirs them up. Everyone is walking on eggshells. My DC spends most of the time elsewhere. My DC is not one of those who have fallen out, but is very stressed living in this environment.
They are all in a contract to July 2027. No-one wants to move out, especially my DC. The problem co-tenants have no other options to leave, no-one else will want them living with them
What advice can I give to help soothe or help exist in this toxic household?