(please excuse my english)

So... a couple of years ago I had a really close friend, we use to talk everyday all the time, we even dated a couple of months when we met. The thing is, I think three years ago now, she stopped talking to me, without even a hint. As you can imagine I was really sad about that and didn't understand why. The thing is three days ago, she reached out to me and told me that she was diagnosed with BPD after having several suicide attempts, she told me that she didn't remember why she stopped talking to me, and that she wanted to be my friend again. We've been talking since then like nothing is wrong, but yesterday I decided to make a search, to know exactly what BPD is and what can cause. I am now really sad and really afraid of every word I say to her because I don't want to trigger anything. She told me she wants to see me in person, and I want to see her too and hug her because I'm so sad for everything she's been through without me. But I don't know how she could react, I don't want her to get to attached to me because I know I cant be with her all the time and I know that people with BPD have abandonment issues.

I'm really lost here, and I don't want to lose the friend that I got back after all these years, so every advice is welcome