It's alright to have your doubts, SIL says the same thing to me as well, but I have that sitch under control.
It's funny cos W and b/f are Taureans born 2 days apart and they swear they are twins so much like each other (not). I would say more like W wants to be like b/f opently sleezy and trampy, and b/f wants to be like W, viewed by everyone as prim and proper but with a bit of sleeze hidden underneath. They make an interesting combination W always bitches about b/f to me but when they are on the phone ahhh.. lovey dove best friends. As always W dominates that friendship, the worse I've heard b/f call W is a spoilt brat W says all sorts about b/f.
SIL put it to me from a woman's perspective and said since I've being doing the DB I've have become a very interesting character that any woman would become interested in, that may be the case with b/f. So there it is K were your doubts the same ?