So my boyfriend has a very mentally unstable ex, they share a 4yo son. I have been with my partner now for 2 years. During the first year of SSs life she was in a mental hospital. She has tried to hurt herself several times.  When they broke up BM took everything from HIS home that theyd shared for 7 years( but she hadnt contributed to once as she refused to work and sponged off his credit card) although they did live together in separate rooms until the council gave BM a house.