Rainbow Dash with a crush on somepony? That pony would be the center of major fanrage! If the pony is a colt, doubly so because of all the broken hearted bronies. If the pony was a filly, well it be partially mitigated because, yeah, the whole "I told you so" aspect, although those hardcore Dash-Pinkie shippers would still be upset. I doubt it will happen though and fans can continue to speculate, and draw and write based on those speculations (which isn't a bad thing at all). I'm hoping that they never try this for these reasons. Honestly, it's ridiculous how badly this has gotten out of hand for the fandom... If they even try to give the ponies romances, the fandom will lash out in one way or another, because their 'favorite shipping pair' didn't happen.