Can I just agree that you handled the situation really well - I don't know that I could have been as polite!
WE've never visited in June - November is 'our' time - but we were stood next to a gay couple in the line for Peter Pan a couple of years ago. These guys were holding hands (as were my DH and I) and my DD (who was 4 at the time) spent ages staring at them. Eventually she asked the one guy "Is he your Handsome Prince?" (She's VERY into Princesses my DD!

) and the guys both laughed and said "Yep". My DD replied "How Lovely!" and then started talking about the Parade we'd just watched. I was SO proud of her - I've always taught her to accept people for who they are and those lessons have obviously paid off. We kept seeing these guys round and about all day, and they always said Hi to my DD.
Later that day we were watching Wishes and who should stand behind us but these guys. My DD was over the moon to see them again and stood with THEM to watch the fireworks instead of with DH and I. The one guy had one of those lightup Mickey toys and (after asking our permission) he gave this to my DD. She was thrilled and when she plays with this at home now, she always says the "Hamdsome Prince" gave it to her!
I tell this story to anyone who's 'scared' of Gay Days or whatever - di this experience scar my daughter for life, or is it one of her favourite memories about WDW.....I'll leave it to you to decide!!!!!