Not many. I really hated flakes and currently I just put them in a little corner I call 'friends, but don't expect much from them'. I will invite them to things but those things will always be events I want to go to, will go to, or already will be taking OTHER people to.

If they want to tag along, great. If not, who cares?

Your friend Orlando not showing up to walk you home is pretty lousy move imo. Don't expect much from this person (as in, don't view him as dependable, at all)