A divorced mother of 3 holds lengthy phone conversations...?

with a married man ad she somewhat knows his wife (they attend the same church). the wife confronts the other woman who claims their convos were srtictly friendly and was caught off gaurd by how the wife knew about her. the wife and lets her know she has no business talking to her husband etc. the woman apologizes to her at church. wha do you think her intentions were? to take the wife's place, flattery of the attention from the man, or just to have a littel you know what on the side.