Ohhhh because of your ex your more cautious with relationships, meaning if you think that a person has affection for you when they're asking you, you dont usually tell them.
OOOHHHHHHHH
IM SORRY
(sry for late reply I didnt see it but ty for finding it for me :)
And no, your right, I dont have any affection for you since I'm part a, but I still like you as a friend :D)