Worried about my friend drifting away from her faith

Assalamu alaikum. I'm not Muslim myself, but I know a fair bit about Islam and its teachings. I've been friends with this sister for years, and she always used to talk about staying on the deen and keeping her purity. But lately, things have changed. She got close to someone who really isn't a good influence. This person kept telling her to leave her family because things at home were tough-there was talk of forced marriage plans and some real hurt there. I understand why she'd want out; it's something she struggled with for a long time. Eventually, she moved without even telling me, even though we used to be close. Since then, she's started smoking cigarettes again and even mentioned trying marijuana recently. It all seems tied to this new person, and now they're in a same-sex relationship, which she always said was against her beliefs and would feel wrong for her. I'm just so concerned about the path she's taking. It feels like she's lost her way, and I don't know if she can come back from this. I wish I could've talked to her before she made these choices. This isn't the person I used to know. Am I overreacting? Probably, but it hurts that my advice doesn't matter to her anymore. She's chosen a different life.