I don't think NaeTae is really in love with TorFun the way Tawanchai love her either. He just feels sorry for her and he also seen how nice and generous she is from the begining of the lakorn and he sort of felt for her because of that, while Tawanchai never seen that good side of her until later on, but he still love her good or bad.
yea i do agree that nae tae dont love kwan as much as win does..but i could tell he fell for her though.
EDIT: i own! yay page 155!