Friend who talks about herself a lot! help please

My friend recently died and I was crying loads of course being friends they comfort me but I have this one friend who only considers herself, I then went home early because I felt ill after crying so much and she came over to talk to me about boys?!...

When a friend had just died and my sister was crying even when she came in of course I really like her I've know her for a long time but I'm not sure I can listen to too much of her self talk

be straight up with her,
tell her exacly how you feel.
maybe she doesnt even realize shes doing it.

agreed with nazy, tell her that your going through such a hard time right now, and the last thing she needs is her talking about guys.. be nice about it, though, because she may not relaise what she's doing is messed up..