My ex is such a dick

So I care very much about my health and body. I used to be a bit chubby, but for almost three years, I’ve been going to the gym. I’m very proud of myself and im glad I’m healthier and fit. With the holidays being very busy and handling school and work, I haven’t been able to really go to the gym much. It’s only been a week. So today at the store I ran into my ex. Awkward. But we both made eye contact, and gave a slight wave. Then he came over and we just were talking about family and all. Then he says “you’ve put on a bit huh?”. I was like what? He said University will do that. I was so pissed but at the same time very upset because I work my ass off and I hear that