I can't forgive my friend?

So here's the deal.. My family life has been pretty chaotic the past year, pretty much starting with my mom getting arrested for her 5th DUI... though I was the one who got the ball rolling and let the authorities know so that I could protect my sister, its a long story, though it caused many other events to where life is today, which isn't the best, such as stuff with my parents divorce and all that.. Though thankfully I've had some very supportive people in my life throughout all this. Well the other day my friend called me and said he wanted to share his opinion on about it all with me. Naturally I listened, though he proceeded to tell me that its all pretty much my fault that all of the stuff happening now is my fault, thanks to that decision.. I've bounced this off of plenty of people I trust, and I know I did the right thing that day, even my own mother thinks so... So after that my friend leaves a voice mail and texts me the next day apologizing for it all and wanting to hang out as if to just put it all under the bridge as soon as possible.. Though hes screwed up quite a bit before, hes not exactly bright, this is something that really cut deep.. I know it would be good to forgive him, I've forgiven him for lesser things, but I don't know if I can find in me to do so this time, let alone even want to be friends anymore... any honest thoughts?