Publius
Yes, you do. "I the Lord will forgive whom I will forgive, but unto you it is required to forgive all men."
Anonymous
Yes, you do. You do it for yourself so you can forget about the offender.
User
Yes.
The Bible permits Christians no excuse. It provides no loophole.
https://www.biblegateway.com/passage/?search=mat+6%3A15&version=NASB1995;NRSV
Be aware, though, that the teaching "forgive and forget" cannot be found in the Bible.
SO: we Christians are required to forgive
but
that does not mean that we must allow ourselves or others to be victimized by the same person in the same way again.
Doug Catholic
You forgive because it's best for YOU to forgive. That doesn't mean you carry on just as before, since there's (typically) no need/requirement to continue being associated with the offender.
Dv8s
As a Christian you should always forgive, but if they feel they did no wrong, you still forgive them, for yourself. This allows you to move on.