This is coming from an SSV? Not your manager? Get in contact with your manager. Call partner resources. Your SSV has no right to say any of that stuff to you, friend or not.

I truly hope you're doing better, and I'm very sorry you're going through a tough time right now.

Before you quit, call EAP (employee assistants program)they might be able to actual help you with these thoughts and get time off without having to walk out and quit. Don’t give up on the company because a basic SSV is giving you crap. Report them AND your manage if when you go to them they have a similar reaction. You are beautiful, you have worth and take advantage of the benefits before you choose to bail. I feel for you. I really do. Hope all ends well.
Edit: spelling, grammsr

I’d quit... I’m sorry you’ve been treated so poorly by someone that would dare call themself a friend. I’m sure there were plenty of concerned and caring ways to speak to a partner about their absence and your SSV failed by you. I’m sorry for that too. It hurts worse knowing the roles of friend and SSV are shared by one person. HR could help, or a transfer if you want, but overall it just sounds very toxic. Your mental health needs your attention now. If you can, quit. Focus on living a fuller life, getting whatever help you need, and finding some things you enjoy doing. This world is so very large and so very full of possibilities. While you may be at the darkest of depths now, know that everything has an equal opposite. You will be at the top of the highest mountain, just not now.
“When you’re going through hell, keep going”

Hey. You should get a job somewhere else. That’s an extremely toxic place and you deserve better. I’m not a therapist but I know for a fact that whatever you’re going through in life right now is temporary. The pain is temporary and will fade at some point. It’s not possible to see that right now but you can get through it. I promise you that life is worth living. If this job isn’t an absolute necessity for you right now you should quit. Your health and state of mind is far more important. If you need someone to talk to you can message me but please look into therapy from someone near you.

you need to talk to your SM and if they don’t do anything, talk to PR. your ssv has no place to say any of this, and company policy is to believe the best in others so if you say you are sick they should assume even if you aren’t, that you are too sick to come in. also, life gets so blurry and dark but whatever you are going through is temporary and things will get better. i hope that you are able to find the light and see how good life really is. things will get better and this too shall pass. you should consider going to a doctor, and if you can’t bring yourself to you can always reach out to friends or online anom chats. you can always reach out to me as well. i hope you get better and you matter. go you!

I’m pretty sure he isn’t allowed to asked your partners that. At least my last job, they couldn’t ask that if it was medical reasons.

I'm so sorry for what you're going through!
You don't know me, but I do care for you, and want you to know that I understand your pain.

Please report the situation, so this type of response from your SSV does NOT repeat in the future.
You're supposed to feel supported, so you can recover, and come back stronger to help the team again!

Please take your time, it's your right.

Let us know how you're doing, updating this when you feel better. Let's talk if you want to, ok?