I think Foolish Youngling ships Rin and Shirou. I don't mind Rin and Shirou to be honest, I just like Saber and Shirou more 
Many, many buts!!!
But mostly because of your shipper heart.
There are quite some ShirouxRin shippers out, and I totally understand why people ship them. Rin is attractice, self-confident, an extreme tsundere, charming, intelligent, and badass after all.
Well, I'd be lying if I said I ldidn't love the romance in Fate/Stay Night (2006) ( it's like one of the few saving graces if you ask me):
One of my favorite moments is the Fate Route where Saber says something along the lines:" You were my shield all this time (she refers to the Avalon in his body)."

And then there's this other one where he helps her cut food b/c she's never cooked before XD