While I agree that mama should "deal" with most of this talk, he's asking you right now because you're available and he feels safe enough with you to do so. Thinking that, I would honestly answer at the best of my capability...age appropriate.

I've had a couple of TOUGH questions from my little man, and I expect several more...

I would answer ONLY what he asks. If he doesn't ask more, he's probably not capable of understanding "all the rest" an adult might throw at him...confusing him more possibly.

I doubt he feels alot of guilt at his age, but more an abandonment and sense of confusion. That's just my take with experience and thinking of little man. Considering that, I would concentrate on his being loved and protected...no matter who's in his life. For instance I might say, "You know what, honey, I'm big and I don't understand alot of things people do sometimes, but one thing I DO know is that daddy loves you, mama loves you and I love you (also throw in brothers, sisters, aunts, uncles, friends, grandparents...heck even teachers...the larger the list, the better). I know it's hard, but if you ever want to hear about how much you're loved, you just ask." Then I would go into a sweet story like the day he was born, etc. While it might not answer all of his little questions, it will doing AMAZING things for the feelings associated there...which we all know can get HUGE.

I wish the little thing some peace and lots of happiness!

KD