Tristan could see that the elf king was much stronger than him, but even so, Tristan refused to let anyone, much less him, dictate his life. Never!
Right now, he is in a good enough position to argue against him. He has the backing of the Vanyar elf, and being married to the princess should have its advantages, does it?
In fact, now that he could be considered the 'son' of the Vanyar ruler, while the half elf was only a nephew, there was grounds to argue that he outranked the annoying king now.
With a newfound confidence, Tristan gave the most sincere smile he could, and said.
"Thank you for the invitation, but as of now, Your Majesty, I much prefer staying here."
Tristan's answer made the king's flat expression change into a surprise for a brief moment. Noticing the expression, Tristan merely smiled in his mind and continued.