Hello y'all. I have a favor to ask. 

Can someone help me find the name of a k-drama?

I don't know if it was a drama or movie, but it is about a couple where the men lead was overweight and the female lead love him despite him being overweight. Then he decides to lose weight and he starts running, and the female lead bought him as a gift a pair of shoes... then the men lead got skinny but did not to be with her girlfriend anymore because he got popular and had more girls than before.. after that he regrets breaking up with her but she has another boyfriend.

PLEASE HELP ME FIND THE NAME OF THE DRAMA

Thanks in advance!!!!!!

You might want to check THE DUDE IN ME
Idk any other dramas with overweight guy in the beginning :((

Thanks a lot!!!! and for the rec. 

On my way to watch it!!!