I know. If the game allowed, I would've shot him in the face.
Not to mention (no spoiler tags since we are in the spoiler forum); He, my son, states that he doesn't have any memories of his mother. But he was with me the same amount of time, probably less so, and he remembers details about me?
So yeah, I'd be pissed. For all the jerking around. And frankly, my char didn't even believe him. And then this whole "I want you to head the Institute" crap? What? Are you kidding? And then, of course, there's the synth that looks like my 10 year old boy.
All in all, I was dumbfounded by the ending. It left more questions then it should've. And no ending was a "good" ending. Because, if you tried to play the game as a decent guy, and in the end you are forced to kill everything - not good.
In my ending, I sided with the Institute. And close to the end, dear old son tell me I have to kill the RR. Even know he knows they are friends of mine. I say "No". He orders me too and leaves. Game stops and waits for me to do it.
Now my only choice is to betray him. Which is exactly what i will do.
This game badly needs a ME like ending choice - you know the one where Shepard tells the Repears to [censored] off. We need that same ending here.