Well, I have been thinking about this for a while already, because I still don't understand why God would condemn a loving, committed homosexual relationship, as opposed to homosexuality in the context of debauchery, blind lust or heathen rituals.
I believe a commandment is not good because God says it, but I believe God demands this or that because it is good. By using our God given conscience and reason, we can understand the wisdom behind the divine commandments. Blind obedience to religious authority is not my cup of tea, I believe God has provided us with conscience and reason to understand the wisdom in his commandments. He would not have provided us with these skills, if we were supposed not to use them.
Add to that that each religious scripture was revealed in a specific historic context, and no revelation is eternal, but depends on man's capacity to understand and follow it in the respective historic and cultural context. Taking this into consideration helps us to understand the wisdom in the respective commandments.
So all I can say is that I don't really understand why homosexuality is such a bad thing. Maybe I just fail to see it.
At any rate, I believe people often make more fuss about this, than the topic deserves. Even if you are a Christian believer, you will find there are many more important commandments and laws, which deserve much more attention than homosexuality, of all things, which, if you look at Paul, just is one sin among many. Lying is a sin just as bad, yet everybody is a liar and nobody makes remotely the fuss about as people make about homosexuality.