Alright, I'm going to seriously chime in now. I don't think it matters how old you are. On some level, everyone cares about their appearance and how they look to others whether they're single or not. I'm 43 and I still want to look sexy for my fiance - and no matter how much you camouflage the bag, you always know it's there. And until you get past that, you won't feel sexy. That's kind of harsh to say, but it really is true. When I first got my stoma, my fiance was of course very supportive, as it was keeping me alive. He always said "you're still the same person" and always told me that I'm beautiful. It's a very hard thing to accept that someone thinks you're hot with a bag of poo on your side...lol But, it's true. Our stoma's don't make us who we are. They're just part of the new package.
Hope this has been helpful in some way.