I really think it depends on what, and who we are forgiving for what ever was done to us or more over what we have done...it's funny how so many people also view kindness as weakness, maybe that's why many of us are reluctant to forgive...forgiveness sets your soul free, it's better than holding on to bad feelings.
I believe forgiveness is a form of kindness. No one truly deserves it because we are imperfect humans, but I believe we should forgive people anyways because all humans make mistakes. Why give one person an exception to not forgive over another?
TOO FULL OF PRIDE...STUBBORN.. MEAN.
Say for example, if I were on a bus and I had a seat and you came on board and your older and standing up I would offer you my seat ( kindness). If however, I was say sexually assaulted I would neither show forgiveness nor kindness, towards the offender. I believe some acts do not deserve forgiveness nor kindness.
You're right, forgiveness can go hand in hand with kindness... we are told to "do justly, love mercy, and humble yourself to follow the Lord..." and it really takes all that.... but to pray for those that despitefully use us, instead of being unkind right back. Lots to learn.
I think forgiveness is a necessary component of true kindness. If one isn't capable of forgiving, their kindness is limited. It's tricky to forgive while safeguarding against a repeat offense. Forgiving, I think, isn't acceptance of the offense though.
Maybe there are certain things that are unforgivable and don't deserve kindness.