Just because someone from your past is suddenly back on the scene
doesn't mean that you are going to have the exact same kind of relationship with them
that you once had.
People change --
for better and for worse,
so do yourself a favor
and treat this person almost like a stranger.
Give them the benefit of the doubt
and make no assumptions about what they will do or say next. Keep your mind open, and you will be rewarded with a pleasant surprise.

so true
and that will be it.