Really?

My marriage sucks at this point. With that said... last year for Christmas we decided to get each other iPads. It was a great Christmas. No stress, no wondering what to get the other. So this year I ask if he wants to do the same thing. He says sure and tells me he's been looking at a GPS he wants. So last night I ask what kind of GPS is it. Are you ready? His response was he was tired and didn't want to talk about it right now. I walked off. He followed and told me again he's tired. I said "It was only a question, never mind"

Any ideas on what's up?