He is well over 1000 years old confirmed, might be even 2000, that said, he'd be too old for anybody, and if its not Athy(He allowed himself to love her because of her magic,look forward to the explanation in the future chapters
), he WOULD stay alone for eternity. But conversely isnt Athy too old for Ijekiel? Isnt she like 40 inside? Should she marry Ijekiel she'd have to live as the princess he thinks she is while hiding her past life from him, now that would be sad. Im sure youve noticed but Lucas is the only one she is truly comfortable with, she can exhibit her crude and non princess-like personnality freely. Merits and achievements aside,thats one of the main reasons i ship her with Lucas, its all about compatibility