Jennys Song

Lots of  fans are talking about the song podrick episode 2  sang before battle begins 
i did some digging around and found out some info about it  how it actually may reveal the ending or
fate of GOT , the song also appears in the novels and its about a woman  jenny of low status
who married a targaryen prince (duncan) , duncans father never  liked this union to spite his father
he gave up the claim to the throne to be with the love of his life - 

so far we know that jon already told sansa he never wanted a crown , we do know jons and danys relationship
is anything but a love story like jenny's/duncans  we do know dany was not happy at all to find out who jon is
 if it was love dany wouldn't be concerned with who has a  claim to the throne

Dany to jon : IF true YOU would be the last male targaryen heir

YOU would have a claim to the throne 

with dark music playing in the background anything but romantic or heartbreaking.It was concern about power/ruling.

I think its a strong possibility if cersei doesnt die ,jon will  give up his claim to the throne and abdicate it to someone else,
either be dany or cersei to protect/save sansa depending on the circumstances. I believe it will be cersei
  Its obvious so far  Dany is not happy with sansa or jon
theon openly snubbed her to fight for sansa , and since dany admitted to sansa she knows jon is manipulating her
recent revealtion who jon is will make her even angrier 
we do know from spoiler pics  cersei and jon filmed scenes together and jon was at KL , 
if truth comes out jon goes to cersei to give up his claim they make an alliance jon/sansa together rule winterfell aka like
ned/catelyn , cersei stays in power in KL and i think dany will have a tragic ending or go back to meeren  which i dont 
see happening , as i believe jorah will kill her with heartsbane sword.