Marriage

my son is 17, he does not work, i pay all bills in the house, except

food ( my wife is dis abled, and gets a small check for her(400.00, and 300.00 from his ssi ) , this was agreed that this money was for food.

i find out later in the year my wife is 2200.00 in the whole on a credit card.

never telling me.

as daily she tells me how she is sinking ( not mentioning the money ) , so i paid off the card, and she promised if she got in trouble to tell me, and to just use the money she had.

so i told her i would also in addition give her 200.00 a month.

come to find out she has been giving money to my son all along, while telling me how she is sinking

i feel very betaid. but dont know how i should feel, or what to do.

please help