Pace probably has it spot on.
Your wife is terrified that something will happen to you,when I was car racing my wife never said much,but when I stopped she said how worried she used to be.
When ever I go flying she asks me to be careful,so I always tell her that apart from her,I'm the most important person and I don't want to peg out just yet.
Let her know you won't take risks,show off,chance the weather etc.
You do need to sort it out because she is not too happy at the moment.
Good luck to you both.
Lister