The way I view it is God wouldn't create you to be bisexual if you weren't meant to be bisexual. I hold a much more complex theory towards gender though and that theory isn't compatible with Christianity.
I think its important to remember that the Bible was written by humans and translated repeatedly by humans. Some words/concepts do not translate well to other languages. Humans also make mistakes because we are not perfect beings. There is potential that people could have made changes over time to the Bible due to errors or their own biases.
There is a theory floating around that the actual translation is that men should not lay with boys and is a passage against pedophilia instead of same-sex relationships.