“It cannot be both carefree and loaded with conflicts. And it cannot be carefree when he was threatening to kill himself…”

I guess it’s always been contradicting like this with him.

“And in spite of his bad conduct and him causing more harm than good, you still got him involved in your latest project too (where he is now slandering you)? Or it’s one and the same project, which is still ongoing?”

It is the same project, and of course he was removed from it a long time ago, when the conflict in between those two was ongoing and he pushed my hand. The slandering was done through mutual acquaintances.

“BTW you earlier said he thought she was an impostor. In what way? What exactly did he have against her?”

That it makes no sense for somebody to be so helpful, that her overdone friendliness feels very fake, that she will hurt me and separate us two. Things like that. He was worried that I was being played, and ultimately he was right.

“Does it mean she promised to help your mother too to relocate to her country, together with you? Your mother would come to live with the two of you, in the big house that was being built, or something like that?”

The house was for us two, although she did mention wanting to help with her accomodation and work somewhere close to us. Obviously after the breakup, I didn’t expect any grand plans anymore yet she still promised to keep helping in the ways she can (as those ideas of hers started even before we got romantically involved).
Just a couple of days after that, she suddenly became very aggressive and petty, withdrew all the support entirely, said we aren’t friends anymore and many other hurtful things such as attacks on my personality (the same she fell madly in love with), but also to “not doubt her affection for me”.
She even refused to take a quick look at some critical documents I made with her guidance and to give her opinion on those.

During the turmoil, she sent me many mixed signals as she would go from angry and cold/cruel to nostalgic or even affectionate. From saying that she doesn’t want me in her life anymore to saying that she missed me badly and still loves me even if that diminished. Likewise she kept saying that she has no romantic feelings for my “friend” but is still on his side fully and wants to try things out.
Later she said that with me she also lost her best friend but we can’t keep in contact largely because she doesn’t want to do that to him (his manipulation?), and also that interacting with me makes her very sad as she keeps remembering the life we had, which she missed a lot.

He himself admitted to putting her against me and even trying to force our separation, he’s full of hate for me and obviously has been filling her head with all sort of delusions and slander. I am more than sure that he did manage to manipulate her a great deal while exploiting her strange obsession towards him (little brother figure?) and “wanting to take care of him” by playing victim, and he has a long history of victimizing himself in conflicts he himself creates.
Still, not only she allowed for that to happen, she said that she actively chose to engage in it and that being objective or fair wasn’t her goal, against all my, and her own warnings.

My only hope is that she’ll be able organize her mind and remember what we had, what happened during the conflict with him, his vile treatment of me, and how he actually is. And I hope that it happens sooner than later.
By betraying and hurting me in the most cruel ways, she did the same to herself and her integrity. The lively, joyful, curious and good person I knew, became some sort of hateful husk (which she blamed on me), and it is truly devastating for me to see her like that.