<human>: Can you provide a brief overview of the text?

Hi reddit,

Title says it all. My girlfriend [19/f] has expressed interest to lose weight. She has steadily gained a total of about 15 lbs over the past year. Probably due to some medication side effects which make her have a bigger appetite and less energy so she exercises less. I [22/m] think she looks great but I'd like for her to lose a couple pounds to be honest. I suggested she'd take this summer to exercise and get on a keto diet to reach her weight goal. She's expressed some interest but I want to make sure she actually does it. How do I go about motivating her to actually exercise/diet and lose the weight she wants to?
<bot>: Gf gained some weight and wants to lose it. I want her to also but I don't wanna be an ass about it. How to motivate her?