Under no circumstances should you date your friends brother in secret. Its shady and plain rude to your friend. Getting permission from your friend will make you feel better about yourself and really show you if this relationship is even worth it!

Is it OK to like your exs best friend?

You may just be curious about your exs best friend, and maybe itll even go somewhere real if they happen to be interested as well. In any event, if the split was amicable, its always best practice to respect someones wishes, so if theyre okay with it, its totally acceptable.