What quote from Act 3 of Romeo and Juliet best expresses that the two main characters are willing to die if they cannot be together?

In the scene that Juliet learns of Romeo killing Tybalt,
she expresses that she is more hurt by the fact that Romeo is being banished and
says:

Wash
they his wounds with tears: mine shall be spent,
When theirs are dry, for
Romeo's banishment.
Take up those cords: poor ropes, you are
beguiled,
Both you and I; for Romeo is exiled:
He made you for a
highway to my bed;
But I, a maid, die maiden-widowed.
Come, cords,
come, nurse; I'll to my wedding-bed;
And death, not Romeo, take my
maidenhead!

Here Juliet is
saying if she can't be with Romeo, she'd rather die than let any other man have
her.

Later in scene iii, Romeo confesses willingness to
kill himself figuratively:

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As if that name,
Shot from the deadly
level of a gun,
Did murder her; as that name's cursed hand
Murder'd
her kinsman. O, tell me, friar, tell me,
In what vile part of this
anatomy
Doth my name lodge? tell me, that I may sack
The hateful
mansion.

Drawing his
sword

Here, he was
asking the friar where and how he should kill himself for the wrong he has done to
Juliet by killing her cousin.

Both Romeo and Juliet show
their desperation in these scenes. Their willingness to kill themselves shows the
passion they must have had to be together.