I remember being in the same position as you and I constantly told my husband how wonderful life was when he was sober. I probably overdid it at times. I think I hoped if I told him enough then he wouldn't go back to it. I was so wrong there. I suggest, if you're happy and you want to tell him then go ahead. It can't hurt and maybe it will make him smile and feel a little better about himself. I know when my A is drinking he's really down on himself so I like to encourage if I can.
PN