If you want no sex until marriage, deal with people as such. Better still, let your pastor help you find someone like that at church. People outside that scope don't owe you understanding, and don't try to change us..
Since realizing people have trauma and insecurities that have lingered all their lives, I don't take so much to heart. I empathise with them and sometimes let some things go. They're just responding to their mechanism.
Cherish every moment with your loved ones. Take as many pictures as you can, because one day, those little moments will become some of your most precious memories.