you should have told him that people would look at him funnier if he caught something. *lol* but it's great that you two have an open enough relationship where you can talk like this, and that you feel "good" about not having all the answers and can utilize that as a way to bond more with your son.
wow! this is poignant, and man have i ever been "there". choices of the heart are very hard when you "need", ya know? you act out of a lonely greediness, in a sense; knowing what you want, and what's best, but not being able to let go of the one that just might be the greener pasture. i'm sorry it ended the way it did.