What is one instance from Mill on the Floss, which explores the conflicts of loyalty and love?

One instance that illustrates the conflict between love and loyalty in The Mill on the Floss is the relationship between Maggie and Phillip. Maggie's love for Phillip, which is based on great friendship, is in direct conflict with her love and feeling of loyalty toward her brother. Her secret meetings with Phillip put a familial relationship on the line.... her relationship with her brother, who she loves more than anyone.