Agreed.
Exes can absolutely be friends, but it's not always easy. Both people have to be willing to make it work, because it will never work without that. And yeah, sometimes it's awkward or hard at first, but when you deal with those feelings on your own end, get closure, whatever, it's really easy. The trouble comes from the other person. If they can't deal (lolorena), or be an adult, it won't work.
I have no hard feelings toward any of my exes, and I wish them nothing but happiness. I still care about them a lot - that's part of who I am - and the olive branch of friendship is always there. Whether they choose to take it up and do something about it - whether they choose to remain friends - is up to them.