Insulator symbolizes gloom, closure, to some extent, squalor. If you dream that you have put in isolation, in fact, your life will be overshadowed by the experience of visiting some places where you have to go for. It will amaze you with its squalor and poverty.
If you dream, you have spent time in prison, so in reality you are keenly feel his loneliness, his isolation and alienation from the rest. For the same reason you are experiencing difficulties as the relationship with the opposite sex you are not familiar.