Kathleen!
A lot of us are in this position with our partners. My wife took it very poorly when I told her (about 3 months ago), had a breakdown, and has just started opening back up. She's still not doing well, but we're a bit better. We're looking at an amicable divorce after the holidays. We also have 3 kids, which complicates things immensely. I came out to myself right before I told her... I'm 35.
Good luck figuring out your path with your wife. I wish you both love, understanding, and acceptance!