Sorry it has been so long since your original post. I haven't checked in on the forums for awhile. I hope you are still around.
People have a choice. They can choose to be homophobic and can choose to interpret the Bible in a way that demeans gay people. or they can choose to be loving and affirming and chose to interpret the Bible in a way that values all relationships. As for me, I am going to choose to be affirming and supportive. If I err, it will be on the side of love, not hate.
You asked what rules guide gay relationships. I say exactly the same ones that guide straight relationships. I take my guidance from the Bible and see that the advice there is beneficial to all people, not just one group.
I too was attracted to guys as long as I could remember. Even though I was taught that it was wrong, I couldn't ever see exactly why it was wrong. It didn't seem wrong. It took a long time for me to finally listen to God and come to the realization that He made me gay and that it was a good thing.
We all need to rejoice that God has made us all so different and so wonderfully diverse.
I pray God's blessings will come to you on your journey through life.
For I am convinced that neither life nor death...neither the present nor the future nor anything in all creation will be able to separate us from the love of God that is in Christ Jesus our Lord. Romans 8:38-39