If i remember correctly, the reason why despite the fact that Yanu's heart meter always increased yet the countdown of solath gettin destroyed is still counting is because of the dragons themselves.
Other dragon would tried to snatch or basically (forcefully) take Eira away from Yanu, meanwhile if i remember correctly, dragon can only have one mate throughout their lifetime, and dragon would literally fight to death, they're not gonna stop until one of them is basically death and they're really really territorial.
If i remember correctly, the reason why despite the fact that Yanu's heart meter always increased yet the countdown of solath gettin destroyed is still counting is because of the dragons themselves.
Other dragon would tried to snatch or basically (forcefully) take Eira away from Yanu, meanwhile if i remember correctly, dragon can only have one mate throughout their lifetime, and dragon would literally fight to death, they're not gonna stop until one of them is basically death and they're really really territorial.