You have done an amazing job and you do look great. I'm glad to hear that your weight is leveling off, since you don't want to go too far. As far as your wife's journey with WL as compared to yours, it really sounds like she's on a different path or has different motivations than you. Your success isn't apparently the same as her success, so she isn't reacting the way you're expecting. I agree with above comments about the heart to heart and the idea of couple's counseling to be sure you are both still on the same track - it's good to check in.
Also, if your weight is leveling off finally - it might truly be time to get to that more upscale department store where a menswear expert can "fit" you for your new body shape - from t-shirts to jeans and dressier clothes, fit can really make that difference and you sure deserve it after such amazing work and success! Good luck!