A) My mom said that she fell in love with my dad because he was always telling her she was important to him, spent all of his time after school with her, and called when he said he was going to call.
B) My mom said that she fell in love with my dad because he always told her she was important to him, spent all of his time after school with her, and called when he said he was going to call.
C) My mom said that she fell in love with my dad because he always told her she was important to him, was spending all of his time after school with her, and called when he said he was going to call.