I do understand your problem. We all want to be fit ourselves and look attractive. Obviously, we want our partners to look appealing as well. No one wants their partners to be fat or ugly. But there are lots of things to do to help the case.... Influence her in a positive way - execrcise yourself and speak with her about its benefits. There are a number of things you can do together to stay fit as well. Walking together regularly is one great example....Start now!