Heroin addiction treatment

I feel terrible about being the one to drag this thread back to life... but honestly, I’m at my wit's end and hoping someone here might have some actual advice, because I don't really know where else to turn.
So, I’m 20, my boyfriend is 23... we haven't been together for ages, but it’s been incredibly intense—the kind of connection where we’re already talking about moving in together. That’s the honeymoon phase part of the story... now for the messy bit.
I finally met his group of friends, and things felt "off" from the jump. Long story short, I found out they occasionally (hopefully just occasionally) pick up drugs...
When I confronted him, he gave me the classic routine: total denial. He claimed it was all stuff from his past, before he met me, and that he wants to be a better man for our relationship and leave all that darkness behind...
And of course, I fell for it. At least, I did, until I found out he actually called a buddy of his to ask when he could "get a fix"... and even offered to buy him a round.
We almost called it quits right then and there, mostly because he got defensive and angry that I even suspected him—he keeps insisting I shouldn't even go down that road...
Deep down, I know he’s lying. I want to help him, and I can't just walk away and leave him hanging without us trying to work through this. The catch? He won't admit to anything, and I can't tell him I've been digging around behind his back, because if I do, it'll be over instantly. Please, if anyone has dealt with something similar, let me know what you think...

uh..
stumbled upon this old thread of mine by accident..
anyway, I ended up going to a meeting in Los Angeles, spent a year there grinding it out, and now—believe it or not—I’ve been sober for five years straight and I'm back to running a successful business..
huge thanks to everyone who shared advice along the way, and seriously, if anyone out there is struggling and needs a hand, just reach out.. you can hit me up here or just shoot me a DM..

And now he’s absolutely crushing it on Wall Street. Huge congrats, man! 🙏

Look, I’m not exactly out here tearing everything up—I’m actually still learning the ropes—but honestly, I’ve been holding my own pretty well since I'm basically just doing a version of the job I used to do back in the day 😉

Where can I get some heroin or heptanone? I feel like I'm dying right now.

Hey 😢
Are you looking for something to numb the heartache, or are you just craving a shot?
If it’s the first one, I might be able to lend a hand 😘
but if it's the second, you should probably head straight to rehab—they’ll have plenty of methadone there, which might take the edge off 🙂

Man, I hate that I’m digging up this old thread, but I’m honestly stuck and don't know who else to ask.

So here's the deal: I was seeing this girl who’s been hitting basically everything since high school—weed, speed, ecstasy, glue, various pills, crushing antidepressants, Xanax, Valium, whatever was lying around... She once told me she turned down heroin when it was offered, but we hung out recently and she admitted she’s planning on trying it (snorting it). She’s acting like one time isn't going to do anything, but I’m not buying it. I get that everyone’s body reacts differently, but still. I can't give her an answer myself, so I'm coming here. She's my ex, but we were friends before that, so I actually give a damn about her and I hate this move she's making. Look, I’ll be real—I used to ride speed and heavy painkillers, and I smoke weed every single night just to pass out because of insomnia. If she had offered me some blow or gear back then, I probably would’ve taken it because my head was such a mess from all that stuff. Now, I’m actually trying to kick it all. But what am I looking at here once she does it? Can someone actually try it just once and stop there, or is that just a lie people tell themselves? And what kind of physical or mental fallout is she actually facing after that first hit? Sorry for reviving this topic, but I’d really appreciate some straight talk from anyone who actually knows their stuff or has been through it. Thanks.