What you stated was...You are attracted to her. She is separated from her husband. To be perfectly honest...imho...That makes her not available. I would advise you to be her Friend before anything else. I would also strongly suggest that you guard and protect your Heart so that it does not get broken. No one wants a re-bound relationship...someone that just fills in the gap in the meantime until...
RE: There is no accounting for us.
I always try to take responsibility for my actions because with actions always come consequences.