You know what really bothers me, is that there is no homophobic characters out there just a bunch of faces overjoyed to hear these two are getting married. Many of these characters are old and from a different time, era, world?, etc. it will be really weird if no one in this story doesn't have a difference of opinion.
.....Rainbow Dash wouldn't quit, so I don't see how a person that would present themselves as a superhero could just "Quit". Sure we know they save people, but their main purpose is to inspire people to be a better person, quitting just should never cross their mind.