I don't really about relationships because I do have very intense emotions due to bipolar. I have both bipolar and schizoid, which maybe is weird, I don't know.
But I do understand feeling like an alien. I feel like an alien all the time. I feel like everyone is huddled in a circle being human and I'm watching them. I've felt this way since childhood. In fact, when I was seven I used to tell all the kids at school that I was an alien and I was abandoned on Earth. That's how far back I can remember feeling this way.