Exactly this. Lack of physical attraction aside, the main reason why shitladies/shitlords don't want to date fat hobgoblins is because we have nothing in common with them. We are strong, active, and disciplined people... fatties obviously aren't. If for some crazy reason I was dating an obeast, and I said "Hey, let's grab some veggie wraps and go for a hike this afternoon," I know I would be met with eyerolls and sighs of contempt. That's not the kind of person I want to be with (and it's certainly not the kind of example I want to set for our hypothetical children if it ever got that far.) It'd be a very unequal relationship, and sorry, but I think I deserve better than that. :P