Psychologically, how long does it take for a person to forget the feeling of vengeance over other person or community?

For example, imagine this scenario: There was a city which was sacked by army and a soldier enters into a house. That house had a family of 4 members, a married couple with their son and daughter. The soldier killed the couples and also called the son before the eyes of the daughter. Then he took her as a sex slave in his house for 15 years.

As you know, at the beginning, the girl will have lot of vengeance over the soldier .That is she wants kill the soldier to avenge her family's death. But due to tight security she can't do it.

Now my question is, does the feeling of revenge exists for the whole 15 years OR eventually fade away? If later is true, then how long does it take for the vengeance feeling to fade away?

Psychologically, how long does it take for a person to forget the feeling of vengeance over other person or community?

For example, imagine this scenario: There was a city which was sacked by army and a soldier enters into a house. That house had a family of 4 members, a married couple with their son and daughter. The soldier killed the couples and the son before the eyes of the daughter. Then he took her as a sex slave in his house for 15 years.

As you know, at the beginning, the girl will have lot of vengeance over the soldier .That is she wants kill the soldier to avenge her family's death. But due to tight security she can't do it.

Now my question is, does the feeling of revenge exists for the whole 15 years OR eventually fade away? If later is true, then how long does it take for the vengeance feeling to fade away?

psychologically how long does it take for a person to forget the feeling of vengeance over other person or community

For example, imagine this scenario

  There was a city which was sacked by a army and army soldier named AB enters into a house

  That house had a family of 4 members  ,a married couple with their son and daughter. the soldier killed the couples and also called the son before the eyes of the daughter

  Then he took her as a sex slave and he used the girl as sex slave in his house for 15 years

. As you know  , at the beginning  , the girl will have lot of vengeance over the soldier .That is she wants kill the soilder to avenge her family's death

  But due to tight security she can't do it

Now my question is  ,does the feeling of revenge exists for the whole 15 years OR eventually fade away  ?

  If later is true  , then how long does it take for the vengeance feeling to fade away  ?

Psychologically, how long does it take for a person to forget the feeling of vengeance over other person or community?

For example, imagine this scenario: There was a city which was sacked by army and a soldier enters into a house. That house had a family of 4 members, a married couple with their son and daughter. The soldier killed the couples and also called the son before the eyes of the daughter. Then he took her as a sex slave in his house for 15 years.

As you know, at the beginning, the girl will have lot of vengeance over the soldier .That is she wants kill the soldier to avenge her family's death. But due to tight security she can't do it.

Now my question is, does the feeling of revenge exists for the whole 15 years OR eventually fade away? If later is true, then how long does it take for the vengeance feeling to fade away?