She didn't even tell me that she was going to bed

For context,
She suddenly stopped responding to my messages, didn't pick up my calls and she still has not responded

That’s really bad

Families, am I right? ☕️

I shouldn’t be speaking. So /j

Got a little brother myself and he's pretty much the opposite, but waay more annoying.

She didn't end her life

What I meant by this post is that she suddenly stopped responding to me last night

I do understand that.

Her last text message was "I love you and you know I always will"

Damn, bro, thats way more serious than I thought.
I am afraid that you may have just lost a family member.

Wait what

Your sister, she...
she has ended her life.

With her last message being something like you said, its most likely that she is dead by now.
She'll never return to life again.

No..

I am sorry, bro.
But it is the cruel truth you have to live with now.

Maybe she didn't mean it in a suicidal way

It can be likely your sister will be gone forever due to ending her life.