It's inside you, Emma.
Save yourself.
When the bridge collapses, she holds her breath – no – and the seconds that follow are long. Eternal. The fake reality she has created stills for a moment, and she hopes, she hopes so hard that her heart clenches. As Emma comes up from the precipice, she realizes.
Henry may not remember – she spends the evening with him, Rumple's old words swirling in her mind, maybe one day they'll even invite you for dinner – he may not remember, but she has a family now. She has her son, and the two idiots, and also Emma.