My gf is kinda toxic

So today my gf tried to exuse drunk driving/Drinking while driving and I just can't. They honestly keep talking about their bad habits infront of my best friend knowing she delt with that shit and almost died from it. My gf has also exused my trauma and acts like they're the only one dealing with shit. I'm honestly so close to dumping their ass cause all they're doing is being negative. Like ffs, its actually not difficult to be happy for me. Like idk, not difficult to tell me "I'm so happy for you". Like Idk, its just horrible on how they act like they can say shit and not get backlash from it.

Also they get mad when people say "I'm going to jump off a cliff" but legit say shit about their alcoholism to my best friend who almost fucking died from it.
Legit don't fucking know why I'm posting this here but legit just needed to rant