Choose suicide as a way out?

I should point out here that there seems to be quite a lot of encouragement to actually choose suicide as a heroic role to play. Consider several of our main heroes:

Romeo: Eyes, look your last!

Arms, take your last embrace! and, lips, O you

The doors of breath, seal with a righteous kiss

A dateless bargain to engrossing death!

Come, bitter conduct; come, unsavoury guide!

Thou desperate pilot, now at once run on

The dashing rocks thy seasick weary bark!

Here's to my love! [Drinks.] O true apothecary!

Thy drugs are quick. Thus with a kiss I die.

Juliet:

What's here? A cup, clos'd in my true love's hand?

Poison, I see, hath been his timeless end.

O churl! drunk all, and left no friendly drop

To help me after? I will kiss thy lips.

Haply some poison yet doth hang on them

To make me die with a restorative. [Kisses him.]

Thy lips are warm!

Chief Watch. [within] Lead, boy. Which way?

Yea, noise? Then I'll be brief. O happy dagger!

[Snatches Romeo's dagger.]

This is thy sheath; there rest, and let me die.

She stabs herself and falls [on Romeo's body].

Recently we had one young movie star (Leonardo Decaprio) played two tragic roles in one year. He was the hero in Titanic and Romeo in a remake of Romeo and Juliet.

In both movies he dies for his love. What encouragement does this give people to contemplate dying for love? Perhaps another even greater hero commits suicide for a purpose. If we think about Jesus from the perspective of the Gospel of John, Jesus is in command and fulfills his purpose. Each step of the passion goes according to plan, a plan that requires God to die (as Jesus) in order to redeem mankind. Was this a suicide?