Time flies, people change, don't expect people to be the way they were before. Change is constant so the person you see years back might not be that same person you are seeing right now, a lot of things must have change.
Don't ever judge people by the way they use behave years back, they have moved on and develop themselves to be where you are now, the same way you must have change also, don't think you are the only one growing and others are stagant.
People change.