Whatever aspect of divinity appeals to you the most and that you feel the most comfortable with is the one which you should work with, regardless of sexual orientation. In my opinion, homo- and bisexuality fit very nicely into the tapestry of Paganism, and that there really is no single heterosexual focus. As far as polyamory goes, I can see nothing wrong with it in either a moral or a Pagan context. Just as with sexual orientation, polyamory is a way of life that you cannot easily deny if it is meant for you. Love is a very abstract idea, yet the emotion is present everywhere.
Love can occur in small doses, even in a split second between two strangers on a crowded street.
I find it to be a very natural fact that more than two people can love each other, and that a nearly infinite number of combinations of loving people in a relationship are possible. Polyamory is a sexual choice that should be welcomed and respected in the Pagan community. This makes sense, certainly it is good to treat others well. When done in an environment that is both physically and emotionally safe and all participants are consenting adults, sadomasochism is not abuse, as it is so often mistakenly called. Many would say that, since the rule includes not harming oneself, that it is indeed wrong to cause pain to someone who wants it.