Well, I'm like 99% sure I'm not going to wind up marrying a man anyway (being as there's been like... one guy who ever even made me question my heterosexuality, and that was a substitute teacher in high-school who was only there for a day. Haven't seen him since), and the only gay people I know already lived in states where it was legal, so nothing really changes for me.
This is going to be one hell of a year in the history books though. Christopher Lee, Leonard Nemoy, the confederate flag stuff related to a church shooting (and now several church burnings), gay marriage legalization, entering into a new mass extinction event (or rather, we may be dangerously soon. The studies were just published this/last year), and the 2015 presidential race (of note so far, Trump's hilariously bad opening speech), and what may be the rebirth of Star Wars. And that's just what I remember off the top of my head from the last few months (and upcoming Christmas).