Mainly just here for advice

No, oh no, not what you think. This is just another sad girl who is going to complain about her relationship, so here goes it. My love and I have been together for years; high school sweethearts if you care to call us that. This kid knows how many attempts I have made to end my life; however, each time it seems to be another friend who picks me back up? The same thing happened tonight because of just all the bull that he promised and yet again didn’t own up to. He makes me feel like I am nothing, and when I get suicidal, he turns himself into the victim. “Oh I love how when we fight you just bring up how sad you are! You have nothing to be sad about!” Because my brother disappearing, father beating me, and mother struggling to have a roof over her head, all of which has happened in less than a year’s time, is no reason to be sad? Insurance money could help mom, and I’m sure brother is out there safe. Dad? I don’t care. After so long with someone though, just the attachment of him always being around is so hard to break, but I don’t know how I can end it without ending everything. Advice would be much appreciated, and any tips on how to detatch yourself from someone is welcome as well, thank you for your time