LE - You need a break. Her actions are no concern of you. Please focus on you and the kid(s) at this point.
W seems to be really lost right now and there is nothing you can do about it. You're her friend? Since when does a friend treat someone like that? Would you really want her as a friend if you were never married? She just said that to make herself feel better! Then for her to say that she could be married to you forever! Seriously, she's fogged in and the plane isn't taking off today or anytime soon. If you were a traveling, you'd cancel the flight. Maybe you should "cancel her plane trip" for a while and get back to you.