Who is Achilles girlfriend?

Excuse me, I'm curious about the personal life of the renowned figure Achilles. I understand that he was a great warrior and hero in ancient Greek mythology, but I'm wondering if you could shed some light on his romantic life. Specifically, I'm wondering who Achilles' girlfriend was, if he had one at all. I'm intrigued by the dynamics of his relationships and how they may have influenced his actions and choices. Could you please elaborate on this aspect of his life?