What has happened in MA since the gays got married?

Not much.  From Think Progress, we learn that 85% of MA voters say, no big deal.

[Marriage equality has not turned society inside out, nor has the promised parade of horribles has not come to pass. Massachusetts now has the lowest divorce rate in the nation, same-sex families now enjoy full legal protections, and the Boston Red Sox have the best record in Major League Baseball. 

And even 66 percent of Massachusetts Republicans concede marriage equality has had no negative effect on them. According to the PPP poll, Massachusetts voters now support same-sex marriage by an overwhelming 60 to 29 percent margin.

So, we do know what happens when Teh Gayz marry.

Gays marry.

End.