I miss some of the friends I had, sorry that they remain trapped.
But more interestingly to me is that I miss the age range and socio-economic mix of friends I had as a JW. Granted we were friends by necessity but they ranged from teenagers to octogenarians, rich to poor, boorish to cultured. The majority of my friends now are like me, maybe not in background but in terms of cultural values, interests and age (well15yrs either way). Attempting to make friends unlike me would feel rather contrived, potentially patronsing, and I think the only way it happens is when the choice is limited by faith or sometimes geography.
But I miss both these things in a very limited sense.