It took me quite awhile to be angry and esp angry for me. It was easier for me to be angry for my D's.
I hope your boys have an easier time of it than anyone thinks they will.
Having said that, I can tell you that still waters run deep. I have one D that still does not really talk about it and there is alot more than meets the eye with her.
Another D really acted out. I've heard it said that where there is anger/rage in a family, there is always a kid that will act it out. Can't speak for others (obviously), but this D is that one in my family. I use the present tense, but I can also say that she is sooo much better now than she was. Counseling was literally a life saver.
Nice that the C sees your strength. A good reminder for you in moments that you may not feel so strong that it is there.