Lily/Donald Questions

I have a few questions on them:


1.) Was Lily constantly flirting back because she was falling for Donald? Was she attracted to him?

2.)What would have happened if the door bell had not of rung on Donald and Lily when he was about to go down on her during the seduction scene? How far would they have gone?

3.) Would you have liked it if Lily and Donald ended up as a couple and Lily was the new mother and Donald's new lover?