I know you're hurting. That's terrible news to get.
Not sure how they think they're getting married since W is already married to you. Whatever. At least now you know who your true friends are.
This all sucks and it hurts like hell. The best thing to do is to deal with the pain because you WILL get through it and you will be a stronger, wiser person for it.
Keep your focus on yourself. Do what it takes to make yourself a better person, understand how your actions contributed to the situation so you won't make the same mistakes next time. Do things that make you happy. There are plenty of fish in the sea and there are others out there who will appreciate and love you for who you are and will want to be a good partner for life.
If you love somebody, set them free. http://tinyurl.com/2empx2g
