Alexa Bond was a waitress at Joe's bar in Seacouver, Washington. She met frequent patron Adam Pierson / Methos and at first resisted his advances. When he finally managed to convince her to date him Joe reluctantly told Methos that Alexa had terminal cancer.
Methos confronted her and she admitted it, he then arrived at her home and convinced her to spend the rest of what time she had traveling the world with him.
The only time Methos left her side during their time together was when Duncan MacLeod suffered a Dark Quickening, and after Alexa was put on life support in Geneva he left her to attempt to claim the Methuselah Stone in a desperate bid to save her life.
After her Death Methos buried her in Paris to keep her close.