A quick update.
It just so happened that this situation took place right before my wifes yearly physical, and she talked to the doctor about things she could do to keep her weight down.
I'm not the slimmest guy around either 5'11" 185 (not all in the right areas though), so I told her I would try to engage in a lifestyle change with her.
We've always ate fairly healthy but we're going to try cut down on having 2nd's and also cut back on junk food and sweets.
I'm going to have a tough time cutting out chips and salsa but she's going to have a tough time cutting out desserts too so I guess its a sacrifice we can both make.
She's going to start excersising (aerobic workout at home) 3 times a week...but shes on her own with that one...I don't have any tights that would fit
Thanks for all the help from everyone who responded.