Hi Alice
First of all, I was one of the commentors in the other thread, as I'm sure you realize. I just wanted to say that I hope that nothing I said hurt you. I always try to treat people with love and respect, no matter who they are. But I also strive to help others learn truth (and in so doing, I study truth myself - because of course, I don't know it all).
Anyway, I have a question. Is this something that comes up regularly comes up? Or are you just preparing for the chance that it may come up? I suggest not living in denial, but if you're completely convicted on this issue, then tell those who ask, the truth, and why.
About your worry that they will dislike or ignore you.
Romans 12:2 ESV
Do not be conformed to this world, but be transformed by the renewal of your mind, that by testing you may discern what is the will of God, what is good and acceptable and perfect.
Colossians 2:8 ESV
See to it that no one takes you captive by philosophy and empty deceit, according to human tradition, according to the elemental spirits of the world, and not according to Christ.
1 John 3:13 ESV
Do not be surprised, brothers, that the world hates you.
This is to say: don't worry. I know it is very difficult to be rejected by those you like and care about, but in my experience, if they love you, truly, they will respect your beliefs and decisions. If they shun you based on this decision that you have made, then they don't truly care about you in the first place. While that is hard to go through, it is something that, for me anyway, makes one stronger. I've had many "friends" - even ones who I was sure were my best friends - disappear from my life because of my beliefs changing. It's not something that has devastated me.
The most important thing is to have our identity in Jesus. He can get us through all of the trials and challenges of life.
God bless you.