Abusive and Neglectful Wife

I am 30, my wife is 25. She makes all kinds of excuses for everything which is just bologna but it's so she can get out of commitments and responsibilities. She has stopped caring for herself, she has seriously let herself go with her weight and she tears me down. Not to mention, sex, which as physical intimacy is my "love language," sex is essential but after two years in of our marriage, she has completely lost interest in me and sex....or at least with me... I have tried to be supportive of her emotions to make her feel safe and secure. She is not a feminazi and holds anti-feminism views, which is actually quite healthy for her considering all the hatred-fueled propoganda and nonsense feminist groups senselessly perletuate. Her and I have the exact same political views, we believe in the same religion, largely the same hobbies and interests even. Our relationship was actually pretty good up until we got married. Marriage seems to have resulted in our relationship going downhill. Come to find out, this is pretty common, as are men now requiring sogned prenups to protect themselves as the result, but this is still frustrating. I have done everything I can, make her feel wanted and appreciated by her love language, I go out of my way to make her know I'm there for her, we have gone to marriage counseling in the past over the same recurring issues as well. I take a step back and give her space, she goes nuts on me. I initiate for sex, she loses her mind. I wait for her to initiate and my unappreciative wife would go months without trying anything. To add to that, she fights, she yells, she gets physical to the point that I have no choice but to put my hands on her to keep me from having to use violence back onto her. She always as the victim with everything and she cries asking me to stay when I pack up and leave, only to continue the bullshit if I come back, or stay. Frankly, she's turning out to be quite the manipulative bitch, which I don't want to say but that's what it's looking like, especially now that sje uses my feelings against me deliberately in the stupid fights she wants to have. I don't know what to do anymore. Any tips or advice would greatly be appreciated on this matter. Also, feel free to ask any questions. Thank you in advance.