In Sarevok's prison, there's actually a deceased human man with a unsent letter professing his love for Quill. This must've been the person she said she was in love with but never got to say it to because of the customs of her race. It's actually why I vastly prefer Durge killing her rather than Alfira because her love is already dead even if you never meet Quill. I hope that since they both have passed on, they can meet again and finally be together in the afterlife (????)