Husband Used Son’s Treatment Money for Gift

Am i the A-Hole For how I reacted when I found out my husband used some of my son's

treatment money to buy a Christmas present for my stepson? It's a long story but I'll try my

best to make it short. So my son Jamie (16) is having medical issues.

Has been for few months now. Without revealing much information because of privacy,

the treatment involves monthly payment. I have a good paying job. Not high.

But good enough. And I been using the money to pay for the treatment. My husband did not

contribute to it but he's been handling everything else like groceries and bills.

I have a 18 year old stepson Louis. He's the type that likes expensive gifts and his father