Its romantic atmosphere fiiled with love is of course very splendid, but I always feel like crying when I thought of Timon and Pumbaa's loneliness to be left by their most trusted friend.

And I really like Nala's this line:
"It's like you're back from the dead. You don't know how much this will mean to everyone... what it means to me."
Nala silently tells Simba how his long absence has affected her and how much she had missed him

Then scene changes into 'Can You Feel the Love Tonight?'
It is needless to say...