(Or is it the other way around ...?)
We certainly see that society is changing. Things virtually unheard of in our grandparents's generation have now become the norm. Religions that don't keep up with the changes are thought irrelevant. We are told that we are not loving if we don't agree with all of the changes that are happening.
Society doesn't progress in a straight line
We understand that similar trends have appeared in the past. Consider the declining Roman Empire, for example. History shows that society isn't moving forward on a line of progress; rather, it is more akin to the swinging back and forth of a pendulum.
However, some things do not change. The laws of procreation haven't changed. And neither does God change (Psalm 90:2; Hebrews 13:8).
We feel conflict, we experience a sense of dissonance: when seeking to do His will in a society having very different values. Where do we turn?
Man can be foolish, but our loving (John 3:16) and all-knowing (Psalm 139:2-6; Romans 11:33-36) Creator is the One who knows what's best for us.
O Lord, I know that the way of man is not in himself. It is not in man who walks to direct his steps. Jeremiah chapter 10 verse 23
Is it unloving to disagree with society's values?
Love and lust aren't the same thing. What I want and what is best for me are not the same thing. True love is about looking to a person's best interests; not simply what they want.
Since God knows what's best for us: following His will brings about the best outcomes. That is real love.
And remember that the Bible is able to demonstrate that it is the true Word of God (e.g. see this article on why we can believe the Bible and this lesson in our brief Bible study). Therefore we can trust what it says - even when it appears out-of-step with society!
Enter in by the narrow gate; for wide is the gate and broad is the way that leads to destruction, and many are those who enter in by it. How narrow is the gate, and restricted is the way that leads to life! Few are those who find it. Matthew chapter 7, verses 13-14
Do not be unequally yoked with unbelievers, for what fellowship have righteousness and iniquity? Or what fellowship has light with darkness? What agreement has Christ with Belial? Or what portion has a believer with an unbeliever? What agreement has a temple of God with idols? For you are a temple of the living God. Even as God said, “I will dwell in them, and walk in them; and I will be their God, and they will be my people.” Therefore “Come out from among them, and be separate,” says the Lord. “Touch no unclean thing. I will receive you. I will be to you a Father. You will be to me sons and daughters, says the Lord Almighty.” Having therefore these promises, beloved, let us cleanse ourselves from all defilement of flesh and spirit, perfecting holiness in the fear of God. 2 Corinthians chapter 6 verse 14 - chapter 7 verse 1