This is a hard one, yes.
Are you the type of person who holds grudges? Thankfully I am not really a grudge-y person, as a matter of fact, it's just too much work for me to remember to hold a grudge :) You know, you wake up feeling normal and then remember that you are mad at someone or treating them with the silent treatment or something like that -- and you go from feeling good to angry. :/ I am truly thankful that the way God made me is that it is usually just too much of a pain for me to hold a grudge. I've been spared that bitterness for most of my life. You know what I'm talking about-- bitterness that can eat you up inside and make you sour.
That being said, as I am getting older I find myself surrounded by people (family too) who hold anger tightly and let it rule their lives. My attitude has not easily rubbed off on them...on the other hand I sometimes feel myself being pulled into that hole of holding a grudge. Yes, I get offended like everyone does, but lately I have found myself holding onto the hurt and wanting to just stay away from those who hurt me.
God, the ultimate forgiver, has to keep reminding me that I need to CHOOSE to "let it go" and forgive. Once I heard a great definition of forgiveness which was something like deciding to give away your right to demand punishment for that person or for their action. I'm not saying that forgiveness is easy, but it's a mind over emotions thing...I know what unforgiveness does to a person, to their family...and I don't want that. I usually end up saying something to God like, "This is so hard. I am choosing to forgive _____. You know I really don't want to forgive them, but ...yes, I do. Please help me to truly forgive and not hold onto this hurt." And He does. Usually the person who I feel wronged by never apologizes or asks for forgiveness, but that doesn't matter, I can offer forgiveness anyhow. It's healing for me to do so.
How many times has God forgiven me? Seriously? Can we even count that high? :) And yet He remains there, with me, helping me, ready to act and always willing to forgive. I wish I was as gracious as He is!