I think you've answered your own question quite thoroughly.

People and relationships change. Sounds like for the worse, in this case.

You can choose to stay around someone that toxic, but why would you? Will you be completely alone forever otherwise? Perhaps more friends will come, if you open a space for that in your life. Seems like that space is full of radioactive sludge at the moment.

There are 7.2+ billion people on this planet, over two million in and around Vancouver. Perhaps better (or less bad) options await.

Assuming you're not such a difficult person yourself, of course.

its call FRIEND(EMY). Some people have combination innate insecurities and petty competitiveness and cannot help themselves from making downer comments. So I have been known to call some of my friends a friendemy with a smile and that gives them a pause and hopefully get the message.

Completely know what you're experiencing. My so-called "best friend" was extremely jealous of my new life as I exited the party scene as she remained drinking, drugging and jumping from relationship to relationship. She told me she would have never chosen my husband for herself, told me I was past my prime, tried to sabatoge my wedding, put down the choices that I made, and so on.

Because I felt that she was my "best friend", I felt very hurt and backstabbed because I thought we were close. It took a few years but I stopped seeing her. We don't even text anymore, because when we do, I get the same jealousy even via texts! So what I'm saying is, is that the person that you're talking about is NOT GOING TO CHANGE. Nothing you say or do will make them treat you better; it's beyond your control. And you know what? That is totally OK. You're going to be fine. You're going to meet some new people and they're going to be good friends to you who support you and have your back.

I now have friends who are stoked for the cool stuff that I do, who bring me a whole bunch of random stuff whenever we meet because they are so happy to finally meet up face to face, and who spend time to make me feel good (not ever bad).

I know it's complex because you feel this person is your "friend". They're not your friend. As the saying goes, with friends like these, who needs enemies?

It's time to divorce your "friend".

move on and find friends that are happy for your success.

BPD.....sometimes it's temporary and sometimes it's just been there since childhood. Detach yourself. Set boundaries and don't open up too much. Don't leave yourself as a target. This person needs to face their own self and is just in denial.

Search your heart and guilty-mind thoroughly, and endeavor to improve any faults you may have that added to this relationship's poor state. And then, let go of this person for now. What you've described is not a friendship; it's a toxic relationship. You need to move on and let this person get on with their life, such as it is. Let go of the outcome of it and be at peace with it.

If it's really as you describe... you stop associating.

is this. then one day she dropped off the face of the earth and ghosted me. little did I know it was the best thing to have happened. not the best way of ending a friendship because I was left hanging going WTF for a long time. but worth it in the end. some people are just dicks with no empathy

...how do you know they are jealous?

To live or deal with people like that. Time to move on, you'll be fine!!! :)