What did she mean by this( in 5th graders response

I do not trust people who dont love
themselves and yet tell me I love you. There is an African saying which is Be careful when a naked person offers you
a shirt.
-Maya Angelou

She meant that someone who does not love themselves cannot truly love others, so be cautious of people who say they love you but do not love themselves. The African saying she mentioned warns about accepting help or love from someone who is not in a position to give it.