Most Helpful Guy
I'd say majority of the time, no being friends with exes never works.
They usually do this to either:
1. make the BU easier for them
2. let you down easier
3. they do care about you, just not in a romantic way and think this is an option. But in retrospect, is very disrespectful to the person being dumped.
The only time it can work is if you were previously friends before. Like in high school I ended up staying friends with my exes but that's due to being at school and having the same friend circle. If they weren't in your friend circle before, more than likely it won't work out and you might get hurt even more.
Most Helpful Girl
I think it depends on why you guys broke up.
I'm still friends with my ex (we just broke up about 2 weeks ago), and I feel that us talking with each other is (somewhat) helping us heal.