Okay, wallowing through the truth and the schtick, I agree with letting it go between the boys BUT making sure your son understands what happened, that it is the rat Blakes fault, I mean, monkey Blake. He seems to have issues.
Now, the fact that he gets along with the older monkey, Trent, may be a thorn in Blakes side. And, well, I agree with blueerica, he {Trent} sounds like a cool dude.
Anywho. Kids. My youngest is ten. So, I am right in the middle of that crap. As GD said, kids grow apart and it hurts the one who isn't ready for it. This actually happened a few months ago with his best friend. I told him not to be mean about it, to let it go. Perhaps they would be friends again and perhaps not but they were best friends so there was something about the kid that he really like and not to be mean to him. And, not to use personal information he had on him to get him at school.
They eventually worked their way back together. My son was upset with him because he {other kid} was eager to please other people {to make new friends, to keep from being beaten up? I dunno...} and didn't appreciate the friend he had.
Hmm...sounds like marriage....
but that is another story for another thread......
Best of luck and be happy that it won't last forever...he'll find a new buddy and perhaps they all will be friends.
Oh, but I would tell Blake that Olas is busy and can't play with him for a while. Play hard to get. Ooo, back to dating and marriage...sorry.....