A bit of an odd question, but do you think that it was possible that Arthur and Rhaegar were more than just best friends?

Of course it’s possible, but I think it’s unlikely for two reasons:

• First, if that was the case, what exactly is the point of having Jon Connington’s pining, unrequited love be such a big part of his backstory? If nothing else, you’d think that Rhaegar would be somewhat less oblivious to all of the cues that the young Jon Con was giving off. 

• Second, I don’t think that’s the direction GRRM wants to go with when it comes to romance and Rhaegar. While we can disagree as to how successful GRRM was in the execution, I think his intent of having R + L = J as the central Romantic tragedy is pretty clear.