no she fancied him when kate was on the scene i remember a conversation between spencer and kate,
jade was trying to cuddle in with spencer like kate does and spencer said what are yu doing and she said "oh yeah i forgot you prefere the other blonde one"
it was after that night that he started on pj, as spencer had gave her the brush off
then spencer pj and jade had the Choices conversation
PJ said his first choice would be jade second kate
so jade obviously had to say first choice pj second spencer
and then spencer done his kate then jade
