He has had a mental breakdown

My partner for two and a half years (we were set to get engaged before the end of the year) has had a mental breakdown. He lashed out at me (no hitting) but he did press me again the wall and throw my phone. I called my parents to come and get me (we own a flat in the town away from my parents) they took me back to their house and I called his parents (although they were estranged) because I was scared he would harm himself. He is now with them. He is booked in to under go intense counselling. We have seen each other a couple of times since. Any advice from women that have been in similar circumstances? I make no promises to leave him or stay with him. For now I am just supporting him as a human- not a girlfriend or ex girlfriend.