I grew up in a situation like that - different religious community, but similar patterns and assumptions regarding pairing off. I can testify that shedding that mindset for yourself isn't as easy as just knowing you want to or thinking you should. After several years, I think I can say that I am very content being single about 90% percent of the time, but even now doubts will creep back. You just... learn to live the way you can, and try to remember that *you* are valuable no matter what.