See my reply to Jesuitical.
It is quite understandable that being nailed to a cross for 3 hours Christ realised he was going to die so commending His spirit to the Father is hardly suicidal.
The Jews and the Romans like Judas all had free will and could have refused to act as they did. They were not God's puppets. Whilst God knew how they would act He did not, could not predetermine it.
Suicide is a mortal sin and Jesus Christ being the perfect man could not commit even a venial sin. I don't understand what your motive is in trying to portray Our Lord as just an ordinary bloke like you or I.