How do you think my relationship with my brother influenced my love life?

My brother disowned me as his sister when I was about 10. We didn’t speak for a few years, I couldn’t comprehend it really, it was a bizarre and heavy burden. The reason was me texting boys and girls saying sexual things. He printed my conversations and shoved them on my face, then there it goes.

We’ve never been close and its always been awkward ever since, even if its been more than 10 years. We talk, sure, but its always with a bit of resentment. Mostly from his part.

I can’t maintain love relationships. I have extreme trust issues because I always catch boys in sketchy situations. I need to know everything about other women, including what they think of. Its wild, and it leaves me manic and neurotic sometimes. When I think of love I think of never really being happy because they’d eventually lie or have lied, or were deceitful or will be deceitful.

How can this relate to my brother? I don’t understand it. I want to know why I am like this.