Yes, but only for you. The people you live your life with (some of whom you even love) are in the same state of mind as before, and you have no (or at the very least less) reason to change something for the better for them.
(read stories about that actually happened in reality. Basically a form of madness/strategy of the brain to deal with a situation it seems impossible to solve)
In any case that seems like a separate emotion than "happy"... "traumatized" seems more like it.