For me, lovers can also be friends it depends on how they talk about the issues from their past and it's better to forgive right? I have a friend his ex became her bestfriend. They understand each other without thinking of the past and to think that they broke up because his boyfriend is a womanizer but in the end they are still friends.
friends can be lovers,but lovers cannot be friends..well for me id defends on how the situation they separate before.if its both side agree about their relatinoship...so why not maybe they can be friends after even it so hard on both party.
Its depend on how they broke up. Some have rough break up and that is hard to stay friends after that. But there are still who stay friends after they broke up.