Questions: Girl's Behavior

One of my close friends started dating a Narcissist. It didn't end well. She almost took her life. Before they were official she went to visit her best friend and used him as a rebound to get over him, but went back to the narc anyway.

She dated the narcissist's best friend first, had a baby, lost a 2 week old baby girl with him and he left her few months after the burial. She then tried to take her life, soon after she started dating his best friend (the Narcissist) for 2 years, She started using heavy drugs on and off and drinking a lot, left him, tried to take her life again and now is dating her own best friend (the rebound guy) who she has always been using as a rebound. Is this at all normal?

The moment she and the Narcissist broke up she traveled by bus again 5 hours to see her best friend (rebound guy) and slept with him again. Came back and next moment a month after the breakup started dating the best friend (rebound guy) who she says she has known for 13 years. She suddenly loves and have loved him for 13 years but always chose other guys over him in fear of what he can offer her and was running away from him. Describes him as a perfect human and is perfect for her, doesn't judge her and knows everything about her.

The best friend is also a psychologist (Nothing against psychologists) and has major influence over her. We don't think 1 month is enough time to get over everything after a relationship of 2 years. All of us tried talking to her. But she doesn't want to listen to anyone. She pushes everyone away including family.

Ignores and manipulates her own psychologist and psychiatrist about her mental health and go against what the doctors keep telling her to not drink while on the meds but she doesn't listen and the "best friend" doesn't do anything to try and stop her when she does impulsive things. Lets her drink and do drugs.

Is this normal and just a phase, and what can we do to help her? How do we approach this? Any advice at all will be helpful.

Below is a chat I had with her since last 4 days and I want to know if there is potential for something to spark but I have no Ideas on such cues. I have never been in a relationship and have been an introvert since the Covid pandemic started but now that I have recovered a bit I want to explore with small steps.
A little context : I haven't met her and it's just been 4 days since I started chatting with her.
I am a bit fat, have man boobs but we both are in college (though I don't know where she studies exactly and if we even live close)
Can you guys please help me? 🥺🙏

Like ladies, why aren't the 20s guys good enough for you, or so I still pass for 20s. I recently turned 30. Guys, do you at 30 or 30-40 find that women in 20s try to pick you up, even with just their eyes 👀😋 i sort of feel like objectified hahaha. I'm just doing my thing, being single and merry and *senses someone staring* looks and woman turns or carried on like they weren't just eyeballing. Meanwhile I keep watching the public tv like nothing while I eat and then pack up my shopping and carry on. Lol. Soon I'll just have to dress even more shabby/poorly to turn off the women's glances. Women, aye? 😈😁 Funny fickle creatures.

For example I'll be sitting there, eating food and I'll notice every now and again I'm being glanced by, sure, attractive, 20s aged women. I don't mean glances like "checking surrounds" I mean more like, stare-bears. 👀🐻 I'm not sure whether to feel flattered, feel amused or bemused, or feel like "am I being looked at for interest or looked at for odd/ugly judges" lol from these women. I'm not necessarily complaining, just like, a) I'm 30 and b) "lady, don't you have a boyfriend, who's probably 20s, lol?" Ah well. If only they could read my mind my eyes lol from afar as I'm just sitting eating my meal in a food public or just going about my mall chores