It depends on your level of anger when the situation is mentioned again. Do you get very angry? On a 1 to 10 scale, are you up near the 9 and 10 range, or is the anger more manageable, say, in the 3 or 4 range? It is common to have some anger left over when we have forgiven, but that anger no longer controls us. So, if you are in control of the anger and its intensity is not high, then yes, I do think that you have forgiven.