It sounds like your husband is overly focused on your looks, instead of your personality. I wonder if either of you realize that. Now let's focus on what you can change.
1. I encourage you to get on meds for the bipolar, and apologize for acting the way you did. Although it was the illness talking, he sees it as you being angry, and you still have to apologize for the way you acted.
2. You can get rid of the belly pudge by doing ab exercises. I'm in my early 40s, I do the P90 DVD, lift weights, ab exercises, and I feel great. Thus, I'm the best looking man in the room in my age group, simply because I give a damn about my appearance. Most of the other guys look pregnant with twins. However, your weight indicates you are not that heavy.
3. See if you can get veneers on your teeth or get that one tooth fixed. Might be $500 or so if you pay cash.
OTOH, you husband may simply be shallow. And you can't change him unless he wants to change.
I have a feeling you are a great, under appreciated person who simply needs some encouragement.
I have a long time interest in psychology, specializing in relationship dynamics for 30 years.
(Please note, we give the best advice we can based on the information given in a post. For better advice, please include the age of all romantic partners.)