Forgivness

Today I actually went to morning mass. I went alone without the children, most of them were still sleeping. My oldest watched Sebastian. I have been longing to go to morning mass.
The readings today were http://www.usccb.org/bible/readings/031312.cfm
Talk about a surprise, divine etc....
FORGIVNESS....easier said than done.In case you didnt go read the link here is the Gospel reading:

Gospel Mt 18:21-35

Peter approached Jesus and asked him,
"Lord, if my brother sins against me,
how often must I forgive him?
As many as seven times?"
Jesus answered, "I say to you, not seven times but seventy-seven times.
That is why the Kingdom of heaven may be likened to a king
who decided to settle accounts with his servants.
When he began the accounting,
a debtor was brought before him who owed him a huge amount.
Since he had no way of paying it back,
his master ordered him to be sold,
along with his wife, his children, and all his property,
in payment of the debt.
At that, the servant fell down, did him homage, and said,
'Be patient with me, and I will pay you back in full.'
Moved with compassion the master of that servant
let him go and forgave him the loan.
When that servant had left, he found one of his fellow servants
who owed him a much smaller amount.
He seized him and started to choke him, demanding,
'Pay back what you owe.'
Falling to his knees, his fellow servant begged him,
'Be patient with me, and I will pay you back.'
But he refused.
Instead, he had him put in prison
until he paid back the debt.
Now when his fellow servants saw what had happened,
they were deeply disturbed, and went to their master
and reported the whole affair.
His master summoned him and said to him, 'You wicked servant!
I forgave you your entire debt because you begged me to.
Should you not have had pity on your fellow servant,
as I had pity on you?'
Then in anger his master handed him over to the torturers
until he should pay back the whole debt.
So will my heavenly Father do to you,
unless each of you forgives your brother from your heart."

 "I say to you, not seven times but seventy-seven times" It always comes back to forgivness. Sure I can forgive my husband. But am I suppose to keep living like this? IF you forgive over and over and over and its the same offense then what? He says forgive....from our heart. But I dont read that we have to live with the person....