"Have it out" with Harry? Severus Snape does not condescend to "have it out" with worthless dunderheads. The Potter brat (yes, he's still at brat at forty) can live out his life however he pleases, and it is no concern of Snape's.

Sixty year old Severus is gorgeous. Severus Snape is a fine wine; he needs to be aged to reach his true perfection.