I had. He was a lot older than me. And there was nothing common between us in general, such as hobby, taste of music, books, how we were raised, etc. Yet we were... like twins. He was as though the rest of my soul. I started to feel scared gradually, of the feelings, as though our souls were melting and fusing into one thing. I lived with him for 7 years and left him. Because he wanted me as woman and I didn't feel the same. He was my mother, he was my big brother, and my home.
So, to me, it's not a matter of believe or don't. There was.