Awwww. Although Harpy might be a bit sad to go so decisively one-upped so fast, even if it's partly because Princess has gained more experience since then.
@JWChibi Harpie keep going along with anything the princess did and didn't correct her on what friends are. Succyun did make an epic job teaching princess how to be a normal friend but she was more interested on the money so she didn't stay around to see that princess can be a friend. Zetsuran just lucked out and engaged in friendship from the get go.