Thank you for all the advice and encouragement. It means a lot! It's such a tough decision to make given the fact we have children and im not in the most sturdy of places financially.

My partner has major ups and downs. There is either one of 2 explanations and im not sure i favour either of them. But... 1# He is bipolar. I know im in no spot to diagnose but he fits almost every single symptom. He has major ups, spending sprees, drugs and alcohol, high drive and very busy, works well and keeps his job. Then he plummets into depression, suicidal, sleeps all the time, easy to anger, tells me when someone angers him, that he could shoot them etc.. wishes death on people, is horrid to me.
Or #2 he is a narcissist. The changes in personality are simply manipulation techniques and fake.

That is the conclusion I have come to at this point.

I am going to bring up therapy again, the last time I mentioned it, he said therapy was for crazy people. (I'm in individual therapy). Iv mentioned going to the doctors to discuss his symptoms, but he denies lots of his actions and I don't trust that he would actually tell them half of what is going on.

Hes going away to work as mentioned above, it sounds so selfish but he has left me in so much debt, im going to try and pay some of it off while hes actually getting a wage so he doesn't leave me with so much. All the bills he refused to help pay for are in my name because his credit is so terrible...
Im just in such a horrible situation, i dont know how it ended up here.