>>1662115>What will happen when...
The following things can/will happen:
1) Daenarys could see Jon as a rival to the throne, and could cause tension/divide between them
2) Dany may be ok with it seeing Jon as the perfect choice to be her King
3) Jon will see incest as a horrible thing and pull away from Daenarys for it because he may see it as morally wrong and/or because he see's it as having something in common with Cerci/Jamie, thus causing a rift between Jon and Dany because Dany is hurt by it.
In the end Jon is going to be the one to ruin things even tho he's completely in the right to want to back off and back away and it will make some fans. especially Jonarysfags, dislike him for it .
So everything stopping the happy ending is the stick up Jons ass.
And the night king...
But we all know the current fans of GoT would rather see the world end and everyone die than not see their sick and twisted romantic fantasies come true.