After spending years chasing someone she thought she liked (Loid), Fiona realized it was going nowhere and decided to give lesbianism a try. She went after Yor, making her realize she was a lesbian, while Fiona discovered she was bisexual. After lots of sex, they got married and adopted Anya, living happily ever after as a family.
Oh, and Loid ended up with Yuri — enemies to lovers"