Bluerose, I looked at your profile and according to you, you are a Christian. I notice this is your first post. You came to this board and headed straight here to ask about this. So, I'm not going to waste your time or mine. And I'm going to be blunt. I think that's what you need.
Let me say first of all that I don't think anyone is here by accident, you included.
Now, God does not make mistakes. He created man and he created woman. Never, never in His word does he condone or even hint that its fine to be homosexual, or lesbian, or even bisexual. And Sweetie, you and I don't have time to waste like we once did. So bluntly, you were NOT 'just born this way.'
You marked that you are a Christian. Its time to act like it. The days of pretending are over. You don't have the luxury to ponder which sin you want to participate in any longer. I advise that you repent and stop this silly pondering. Don't mock my God again with that "If I marry my boyfriend, in my whole life I will never have even kissed a woman." Christ Jesus did not die that awful death so you can say you are a Christian and come here wanting us to say...what? Do you think a one of us here would advise you to go on with this?
Time is too short. Its time to repent and get your heart right with God. What you need to do is repent and pray and get into that Bible. If you don't have one, there is Bibles right here that you can read. You and that boyfriend need to be praying together and studying the Word together and find a good Bible teaching church for the two of you, whether you end up marrying or not.
Its time to stop this mockery of Almighty God. Here's some scripture for you to think on, rather than the foolish things you have been thinking on:
21 Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened.
22 Professing themselves to be wise, they became fools,
23 And changed the glory of the uncorruptible God into an image made like to corruptible man, and to birds, and fourfooted beasts, and creeping things.
24 Wherefore God also gave them up to uncleanness through the lusts of their own hearts, to dishonour their own bodies between themselves:
25 Who changed the truth of God into a lie, and worshipped and served the creature more than the Creator, who is blessed for ever. Amen.
26 For this cause God gave them up unto vile affections: for even their women did change the natural use into that which is against nature:
27 And likewise also the men, leaving the natural use of the woman, burned in their lust one toward another; men with men working that which is unseemly, and receiving in themselves that recompence of their error which was meet.
28 And even as they did not like to retain God in their knowledge, God gave them over to a reprobate mind, to do those things which are not convenient;
29 Being filled with all unrighteousness, fornication, wickedness, covetousness, maliciousness; full of envy, murder, debate, deceit, malignity; whisperers,
30 Backbiters, haters of God, despiteful, proud, boasters, inventors of evil things, disobedient to parents,
31 Without understanding, covenantbreakers, without natural affection, implacable, unmerciful:
32 Who knowing the judgment of God, that they which commit such things are worthy of death, not only do the same, but have pleasure in them that do them.