Only the female friend can fully know why she told that.
Asking her is the only way to get a complete correct answer - and the last thing anyone need in that sort of situation is uninformed guesses from strangers to both people.
i do
It's warmer there. Cats will often do the same thing.
The person your friend sleeps with is an "ex" meaning you no longer have any claim on that person. What they chose to do is none of your business. If your friend chooses to do this, that is none of your business either. Some friends might shy away from such a thing just to spare your feelings. But you don't need to do anything. If you can't bear the thought of your friend sleeping with your ex and seeing your friend makes you think about it, then don't see the friend any more. But do you really want to lose a friend and a lover too?
The classical answer is 'homewrecker'
no he sleeps around
well possilby just to get a good sleep
It may mean that it lasts longer than usually
The cast of When Justice Sleeps - 1915 includes: Charles Dudley Daniel Gilfether Henry King as The Husband Ruth Roland as The Extravagant Wife
The slutty girl who works in your office and sleeps with all the male (and/or female) employees
put a furry hair bobble next to your friend ,pretend to be asleep then wait to see how she reacts!!!!
The brothel
she is a secret lover of antonio and she secretly has an affair with his best friend. she is a dirty tramp. she sleeps with his best friend