i only read your storyline and climax at page 9.
to me, girls can manja to you for many reason.
firstly, its obviously for your attention.
at times girls crave for more attention than men.
secondly, they are pulling strings with you. shes the fisherwomen and youre the fish, she can fish so many fish, and dowan to bring up to the boat(accept), cause while leaving all the hooks and fishes in the water, she can have the fun(attention) of playing with all the fishes.
And like you say, shes beautiful and angelic. What more can she possibly use that for?

No hard feelings, just my 2 cents from previous experiences =)