How do you tell your girlfriend in a nice way she's gaining weight?

stepdaddy
Taking care of your mental and physical health is really important. But my friend said that his girlfriend is gaining weight and does not see fitness as an important factor in a relationship. So he is losing his attractiveness to her. Should he just break up or continue to convince her to invest more in physical health?
Break up and don't force change
Vote A
Stay and motivate her
Vote B
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How do you tell your girlfriend in a nice way she's gaining weight?
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