Fic 1: Spike is not living in sunnydale but somewhere else and Xander goes to find him and bring him home. However Spike is working as a high class prostitute so Xander pays him to live with him and offer his services. I remember that Xander is rich from winning the lottery thanks to a spell of Willows or something. Any way they gradually fall in love.
Fic 2: I don't remember much only that Buffy is dead and Spike and Xander are looking after Dawn and they make Angel come and tutor her and she upsets Xander somehow I think. Not much to go on I am afraid.
Any ideas please let me know and thanks in advance.