dansup, but sexual role, personality and appearance don't meaningfully correlate, in my own experience. Same way you can't just know someone's sexual orientation by looking at them.

I've never been in a relationship, but I feel like "stay away" is not something I would want to do in one. On the contrary, get into all of it, get to know your partner better! Maybe you'll even discover something new about yourself in the process. Y'know, relationships are about being close to each other, not this.