Pertaining to your original question, not last paragraph.....

It is just interesting that you can in fact form a bond from words, trust, yet not "physical intimacy" in the true form, rather in a visualisation form and verbal communication.....
But truth is:-
Women bond very easliy...
Foreplay can be in the form of words, kissing, not necessarily touching in order for that bond to take place.
Then she has a desire, interest and lust to take the next step....
In general terms once achieved at this level, she then feels bonded to the effect that you are "now my boyfriend", even if you were just seeing where it might lead and then have no real connection, she more than likely misses that and feels bonded.
So, be ware on how you treat the lady in respect of what you are after, this is where emotions come into place, i believe.