Okey here is the deal:
I met this girl two months ago in university as i was walking by, good looking!
i greeted her and introduced her. and left.

a month later i meet her again on my way! and speak to her half an hour then leave without pulling her number, and i find out that she has a sister. I meet her sister too

3rd time i meet ( 3-4 weeks after) her sister and ask her about her so she takes me to her.
This time i pull both of their number

Now what happened was that i would meet them occasionally at first

(she was always at the library at first doing work)

and one day she texts that she wants to have a cookie with me so i take her to eat.
we talk till an hour and then i left for classes.

now i know that was a positive response but since that time i am always texting her first to hangout on campus and she replies !! but lately she replies pretty late! and is doing lunch with another female friend.

fourthly! i am with her many times but i have to text her to find where she at.
I invited her to movies on weekend at first she said yes but hesitated to chill outside campus.
i even gave her some kind of gift, she did not take it first but i kind of forced upon her.

The thing is i had so many chances i took her alone to eat on campus and if i wanted i could physically seduce her, but it is against my principals to do so! (morally), how do i build her interest in me?

and also - i suppose how do i seduce her without really touching her?
- she is a good girl- good enough for marriage !
Plus she is kind of religious too... therefore i would hard to find my self in such a situation with her!

Help me with my game!