What does “be in love with someone” mean?
Good question! To be "in love" is the state of loving someone or something, and the preposition "in" serves to modify the verb "love". So to be "in love" is just another way to say "love". When you use "in love" to refer to a person, it usually means you love them in a romantic way. Ex: I am in love with these new shoes. Ex: He wants to marry her because he is in love with her.