yes, a lot of this rings true.
These people can also have a difficult time discussing their reactions because they don't trust people very easily. Rather than wanting to talk about their behavior and get help, they will often keep things inside because they believe if they talk about it, it will be used against them.
I'm like that. I can't talk about it because i believe it would mean letting my guard down too much, and that he will either make me suffer from it even more giving me actual reasons to be jealous, or think less of me because of that. And it's not just about jealousy, it took me a lot of effort and time together to admit i have insecurities, and to this day im not sure if i feel like it was the right choice and sometimes i regret i opened up. I just feel like he'll think he can use this to his benefit to torture me, or think i'm pathetic because of that.
But then i am a paranoid person overall. when im jealous, people are always asking "why are you with him if you don't trust him?"
because it's not about him, it's about me. I can't trust anyone. i don't even trust myself.