The landlord's sister,
If you say you've lost weight, and he doesn't say sweet words, it's wrong for your boyfriend to judge that he doesn't love you.
Boys have the selfishness of making their girlfriends better and looking good, so saying that you are fat does not stop you from losing weight, not to mention those sweet words.
But because he loves you, he won't force you. He buys you food when you lose weight, because as a person, he doesn't mind that you don't have a devil's body.
Don't worry, sister, he is actually very kind to you. So he loves you more than protecting his face. He loves you very much.