Walking away from toxic relationship. Everytime the dicision is in my hands I ge. So my anxiety and become so unhappy?

So he’s good in the sense of he’s very adventurous and is always down to try new foods new restaurants and not be home all day bored. He’s very affectionate but he’s always very aggressive . He smokes weed. And we can never go out to eat unless he smokes first.when he drinks he gets very violent with me . He hasn’t hit me but has cursed me out and thrown his jacket I my face in front of friends. He’s currently trying to get his tech certificate as Hvac and he works for HVAC . I’m graduated revelry with a bachelors in Biology. He cheated on me in the beginning, I took him back and he’s not cheating but he goes out to bars and clubs sometimes behind my back. He says I dnt give him enough space and that he need some to be with friends on weekend. Or one . However weekends are kind of the time me and him bond due to our schedule. Last night I caught him texting his ex girlfriend . I was able to get into his Instagram account and see that he had said happy Valentine’s Day. “ you forgot about me” “and then last night when I dropped him off he said at 129am “ why u always ignoring me to her on a message. I already he’s no good for me.. but everytime something like this happens I get filled with anxiety and I cry to the point of having panic attacks. I can’t imagine myself without him but then again I can’t stay suffering . Is there therapy ? Or things that have worked for people to be able to way away from toxic ppl.