talk about her ex's?
a lot of the girls i had a relationship talked about various ex's they had as if i care. 
Agreed 100%
I have had this in every single relationship from the past, some obviously worse then others.
I handle this 2 ways now:
1) As soon as I ask a girl out with romantic intentions I tell her on the first date that my #1 turn off is to hear about previous relationships/guys.
2) Much of this can be avoided in the first place if a better choice is made when selecting women