Thank you for your replies, Gma and Harley. No, doesn't drink or use any illegal drugs. He does take an antidepressant and an anti-anxiety medication. I'm kind of wondering if maybe his medication needs to be adjusted in some way.

I don't think anything out of the ordinary happened at work yesterday - he said it was a pretty good day. I dont know what his deal is. I would think most people would be happy to know that someone wants to spend time with them - especially their spouse. This is still really bothering me - my stomach feels like it's in knots.

Thank you everyone for your kind words.