Scared I dont know what to do?

Ok so my ex and I broke up after he lived w me for 6 months cus he got kicked out of his house for doing stupid stuff to his parents dangerous stuff. We broke up 3 weeks ago and i am trying to move on with my life but now in the last week he's tried suicide twice! His parents own my house and now they are puttin the pressure on me to let him stay here w me and my elderly parents. I am scared of him but they say its just til he gets a bed in rehab. I am scared if I dont comply we'll get kicked out but at the same time I cant stand the idea of him hurtin my parents while I am working or something worse happening. I need help I dont know what to do!